diff --git a/src/bin/cargo/commands/add.rs b/src/bin/cargo/commands/add.rs
index 32c7699e775..1ff2aad1944 100644
--- a/src/bin/cargo/commands/add.rs
+++ b/src/bin/cargo/commands/add.rs
@@ -7,6 +7,7 @@ use cargo::ops::cargo_add::add;
 use cargo::ops::cargo_add::AddOptions;
 use cargo::ops::cargo_add::DepOp;
 use cargo::ops::cargo_add::DepTable;
+use cargo::ops::resolve_ws;
 use cargo::util::command_prelude::*;
 use cargo::util::interning::InternedString;
 use cargo::CargoResult;
@@ -193,6 +194,12 @@ pub fn exec(config: &mut Config, args: &ArgMatches) -> CliResult {
     };
     add(&ws, &options)?;
 
+    if !dry_run {
+        // Reload the workspace since we've changed dependencies
+        let ws = args.workspace(config)?;
+        resolve_ws(&ws)?;
+    }
+
     Ok(())
 }
 
diff --git a/src/cargo/ops/cargo_add/manifest.rs b/src/cargo/ops/cargo_add/manifest.rs
index b90b7808392..1c96b477062 100644
--- a/src/cargo/ops/cargo_add/manifest.rs
+++ b/src/cargo/ops/cargo_add/manifest.rs
@@ -238,8 +238,7 @@ impl str::FromStr for Manifest {
 
 impl std::fmt::Display for Manifest {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
-        let s = self.data.to_string();
-        s.fmt(f)
+        self.data.fmt(f)
     }
 }
 
@@ -433,6 +432,12 @@ impl LocalManifest {
     }
 }
 
+impl std::fmt::Display for LocalManifest {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        self.manifest.fmt(f)
+    }
+}
+
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord)]
 enum DependencyStatus {
     None,
diff --git a/src/cargo/ops/cargo_add/mod.rs b/src/cargo/ops/cargo_add/mod.rs
index a1cc0d272aa..c584a03f858 100644
--- a/src/cargo/ops/cargo_add/mod.rs
+++ b/src/cargo/ops/cargo_add/mod.rs
@@ -62,6 +62,7 @@ pub fn add(workspace: &Workspace<'_>, options: &AddOptions<'_>) -> CargoResult<(
 
     let manifest_path = options.spec.manifest_path().to_path_buf();
     let mut manifest = LocalManifest::try_new(&manifest_path)?;
+    let original_raw_manifest = manifest.to_string();
     let legacy = manifest.get_legacy_sections();
     if !legacy.is_empty() {
         anyhow::bail!(
@@ -142,6 +143,16 @@ pub fn add(workspace: &Workspace<'_>, options: &AddOptions<'_>) -> CargoResult<(
         }
     }
 
+    if options.config.locked() {
+        let new_raw_manifest = manifest.to_string();
+        if original_raw_manifest != new_raw_manifest {
+            anyhow::bail!(
+                "the manifest file {} needs to be updated but --locked was passed to prevent this",
+                manifest.path.display()
+            );
+        }
+    }
+
     if options.dry_run {
         options.config.shell().warn("aborting add due to dry run")?;
     } else {
diff --git a/tests/testsuite/cargo_add/build_prefer_existing_version/in/dependency/Cargo.toml b/tests/testsuite/cargo_add/build_prefer_existing_version/in/dependency/Cargo.toml
index cbe244113c1..58b909ceff0 100644
--- a/tests/testsuite/cargo_add/build_prefer_existing_version/in/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/build_prefer_existing_version/in/dependency/Cargo.toml
@@ -3,3 +3,7 @@
 [package]
 name = "cargo-list-test-fixture-dependency"
 version = "0.0.0"
+
+[features]
+one = []
+two = []
diff --git a/tests/testsuite/cargo_add/build_prefer_existing_version/out/dependency/Cargo.toml b/tests/testsuite/cargo_add/build_prefer_existing_version/out/dependency/Cargo.toml
index cbe244113c1..58b909ceff0 100644
--- a/tests/testsuite/cargo_add/build_prefer_existing_version/out/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/build_prefer_existing_version/out/dependency/Cargo.toml
@@ -3,3 +3,7 @@
 [package]
 name = "cargo-list-test-fixture-dependency"
 version = "0.0.0"
+
+[features]
+one = []
+two = []
diff --git a/tests/testsuite/cargo_add/build_prefer_existing_version/stderr.log b/tests/testsuite/cargo_add/build_prefer_existing_version/stderr.log
index 00f39cd5b98..554aa2ef31d 100644
--- a/tests/testsuite/cargo_add/build_prefer_existing_version/stderr.log
+++ b/tests/testsuite/cargo_add/build_prefer_existing_version/stderr.log
@@ -1 +1,4 @@
       Adding cargo-list-test-fixture-dependency (local) to build-dependencies.
+             Features:
+             - one
+             - two
diff --git a/tests/testsuite/cargo_add/dev_prefer_existing_version/in/dependency/Cargo.toml b/tests/testsuite/cargo_add/dev_prefer_existing_version/in/dependency/Cargo.toml
index cbe244113c1..58b909ceff0 100644
--- a/tests/testsuite/cargo_add/dev_prefer_existing_version/in/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/dev_prefer_existing_version/in/dependency/Cargo.toml
@@ -3,3 +3,7 @@
 [package]
 name = "cargo-list-test-fixture-dependency"
 version = "0.0.0"
+
+[features]
+one = []
+two = []
diff --git a/tests/testsuite/cargo_add/dev_prefer_existing_version/out/dependency/Cargo.toml b/tests/testsuite/cargo_add/dev_prefer_existing_version/out/dependency/Cargo.toml
index cbe244113c1..58b909ceff0 100644
--- a/tests/testsuite/cargo_add/dev_prefer_existing_version/out/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/dev_prefer_existing_version/out/dependency/Cargo.toml
@@ -3,3 +3,7 @@
 [package]
 name = "cargo-list-test-fixture-dependency"
 version = "0.0.0"
+
+[features]
+one = []
+two = []
diff --git a/tests/testsuite/cargo_add/dev_prefer_existing_version/stderr.log b/tests/testsuite/cargo_add/dev_prefer_existing_version/stderr.log
index d8093d6aece..06673543a9f 100644
--- a/tests/testsuite/cargo_add/dev_prefer_existing_version/stderr.log
+++ b/tests/testsuite/cargo_add/dev_prefer_existing_version/stderr.log
@@ -1 +1,4 @@
       Adding cargo-list-test-fixture-dependency (local) to dev-dependencies.
+             Features:
+             - one
+             - two
diff --git a/tests/testsuite/cargo_add/git/stderr.log b/tests/testsuite/cargo_add/git/stderr.log
index fdfb1a952a1..839d8bb3272 100644
--- a/tests/testsuite/cargo_add/git/stderr.log
+++ b/tests/testsuite/cargo_add/git/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_branch/stderr.log b/tests/testsuite/cargo_add/git_branch/stderr.log
index fdfb1a952a1..839d8bb3272 100644
--- a/tests/testsuite/cargo_add/git_branch/stderr.log
+++ b/tests/testsuite/cargo_add/git_branch/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_dev/stderr.log b/tests/testsuite/cargo_add/git_dev/stderr.log
index 4ba31625b58..8e53bb4beea 100644
--- a/tests/testsuite/cargo_add/git_dev/stderr.log
+++ b/tests/testsuite/cargo_add/git_dev/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dev-dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_inferred_name/stderr.log b/tests/testsuite/cargo_add/git_inferred_name/stderr.log
index 48f251ea11d..b5e8b1c9ba3 100644
--- a/tests/testsuite/cargo_add/git_inferred_name/stderr.log
+++ b/tests/testsuite/cargo_add/git_inferred_name/stderr.log
@@ -1,3 +1,4 @@
     Updating git repository `[ROOTURL]/git-package`
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_multiple_names/stderr.log b/tests/testsuite/cargo_add/git_multiple_names/stderr.log
index e67710147da..454f0c797ee 100644
--- a/tests/testsuite/cargo_add/git_multiple_names/stderr.log
+++ b/tests/testsuite/cargo_add/git_multiple_names/stderr.log
@@ -1,3 +1,4 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding my-package1 (git) to dependencies.
       Adding my-package2 (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_registry/mod.rs b/tests/testsuite/cargo_add/git_registry/mod.rs
index 20ebb39a848..b546f63abef 100644
--- a/tests/testsuite/cargo_add/git_registry/mod.rs
+++ b/tests/testsuite/cargo_add/git_registry/mod.rs
@@ -32,7 +32,7 @@ fn git_registry() {
         ])
         .current_dir(cwd)
         .assert()
-        .success()
+        .failure()
         .stdout_matches_path(curr_dir!().join("stdout.log"))
         .stderr_matches_path(curr_dir!().join("stderr.log"));
 
diff --git a/tests/testsuite/cargo_add/git_registry/stderr.log b/tests/testsuite/cargo_add/git_registry/stderr.log
index 548debfadf6..c554c7ec082 100644
--- a/tests/testsuite/cargo_add/git_registry/stderr.log
+++ b/tests/testsuite/cargo_add/git_registry/stderr.log
@@ -1,2 +1,6 @@
     Updating git repository `[ROOTURL]/versioned-package`
       Adding versioned-package (git) to dependencies.
+error: failed to parse manifest at `[ROOT]/case/Cargo.toml`
+
+Caused by:
+  dependency (versioned-package) specification is ambiguous. Only one of `git` or `registry` is allowed.
diff --git a/tests/testsuite/cargo_add/git_rev/stderr.log b/tests/testsuite/cargo_add/git_rev/stderr.log
index fdfb1a952a1..839d8bb3272 100644
--- a/tests/testsuite/cargo_add/git_rev/stderr.log
+++ b/tests/testsuite/cargo_add/git_rev/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/git_tag/stderr.log b/tests/testsuite/cargo_add/git_tag/stderr.log
index fdfb1a952a1..839d8bb3272 100644
--- a/tests/testsuite/cargo_add/git_tag/stderr.log
+++ b/tests/testsuite/cargo_add/git_tag/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/git-package`
       Adding git-package (git) to dependencies.
+    Updating git repository `[ROOTURL]/git-package`
diff --git a/tests/testsuite/cargo_add/list_features_path/in/dependency/Cargo.toml b/tests/testsuite/cargo_add/list_features_path/in/dependency/Cargo.toml
index 34157f41182..18041a53fd6 100644
--- a/tests/testsuite/cargo_add/list_features_path/in/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path/in/dependency/Cargo.toml
@@ -3,8 +3,7 @@ name = "your-face"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
 optional-dependency = { path = "../optional", optional = true }
 
 [features]
diff --git a/tests/testsuite/cargo_add/list_features_path/in/optional/Cargo.toml b/tests/testsuite/cargo_add/list_features_path/in/optional/Cargo.toml
index 0216dba8987..cb61a05144c 100644
--- a/tests/testsuite/cargo_add/list_features_path/in/optional/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path/in/optional/Cargo.toml
@@ -1,7 +1,6 @@
 [package]
-name = "optional-dep"
+name = "optional-dependency"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
diff --git a/tests/testsuite/cargo_add/list_features_path/out/dependency/Cargo.toml b/tests/testsuite/cargo_add/list_features_path/out/dependency/Cargo.toml
index 34157f41182..18041a53fd6 100644
--- a/tests/testsuite/cargo_add/list_features_path/out/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path/out/dependency/Cargo.toml
@@ -3,8 +3,7 @@ name = "your-face"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
 optional-dependency = { path = "../optional", optional = true }
 
 [features]
diff --git a/tests/testsuite/cargo_add/list_features_path/stderr.log b/tests/testsuite/cargo_add/list_features_path/stderr.log
index 27378049be0..af6747fe836 100644
--- a/tests/testsuite/cargo_add/list_features_path/stderr.log
+++ b/tests/testsuite/cargo_add/list_features_path/stderr.log
@@ -4,3 +4,4 @@
              + nose
              - eyes
              - optional-dependency
+    Updating `dummy-registry` index
diff --git a/tests/testsuite/cargo_add/list_features_path_no_default/in/dependency/Cargo.toml b/tests/testsuite/cargo_add/list_features_path_no_default/in/dependency/Cargo.toml
index 34157f41182..18041a53fd6 100644
--- a/tests/testsuite/cargo_add/list_features_path_no_default/in/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path_no_default/in/dependency/Cargo.toml
@@ -3,8 +3,7 @@ name = "your-face"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
 optional-dependency = { path = "../optional", optional = true }
 
 [features]
diff --git a/tests/testsuite/cargo_add/list_features_path_no_default/in/optional/Cargo.toml b/tests/testsuite/cargo_add/list_features_path_no_default/in/optional/Cargo.toml
index 0216dba8987..cb61a05144c 100644
--- a/tests/testsuite/cargo_add/list_features_path_no_default/in/optional/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path_no_default/in/optional/Cargo.toml
@@ -1,7 +1,6 @@
 [package]
-name = "optional-dep"
+name = "optional-dependency"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
diff --git a/tests/testsuite/cargo_add/list_features_path_no_default/out/dependency/Cargo.toml b/tests/testsuite/cargo_add/list_features_path_no_default/out/dependency/Cargo.toml
index 34157f41182..18041a53fd6 100644
--- a/tests/testsuite/cargo_add/list_features_path_no_default/out/dependency/Cargo.toml
+++ b/tests/testsuite/cargo_add/list_features_path_no_default/out/dependency/Cargo.toml
@@ -3,8 +3,7 @@ name = "your-face"
 version = "0.1.3"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+my-package = "0.1.1"
 optional-dependency = { path = "../optional", optional = true }
 
 [features]
diff --git a/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log b/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
index cc6c8346279..7f47a220ec0 100644
--- a/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
+++ b/tests/testsuite/cargo_add/list_features_path_no_default/stderr.log
@@ -4,3 +4,4 @@
              - mouth
              - nose
              - optional-dependency
+    Updating `dummy-registry` index
diff --git a/tests/testsuite/cargo_add/locked_changed/in b/tests/testsuite/cargo_add/locked_changed/in
new file mode 120000
index 00000000000..6c6a27fcfb5
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_changed/in
@@ -0,0 +1 @@
+../add-basic.in
\ No newline at end of file
diff --git a/tests/testsuite/cargo_add/locked_changed/mod.rs b/tests/testsuite/cargo_add/locked_changed/mod.rs
new file mode 100644
index 00000000000..f4156f8e5f0
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_changed/mod.rs
@@ -0,0 +1,25 @@
+use cargo_test_support::compare::assert_ui;
+use cargo_test_support::prelude::*;
+use cargo_test_support::Project;
+
+use crate::cargo_add::init_registry;
+use cargo_test_support::curr_dir;
+
+#[cargo_test]
+fn locked_changed() {
+    init_registry();
+    let project = Project::from_template(curr_dir!().join("in"));
+    let project_root = project.root();
+    let cwd = &project_root;
+
+    snapbox::cmd::Command::cargo_ui()
+        .arg("add")
+        .arg_line("my-package --locked")
+        .current_dir(cwd)
+        .assert()
+        .failure()
+        .stdout_matches_path(curr_dir!().join("stdout.log"))
+        .stderr_matches_path(curr_dir!().join("stderr.log"));
+
+    assert_ui().subset_matches(curr_dir!().join("out"), &project_root);
+}
diff --git a/tests/testsuite/cargo_add/locked_changed/out/Cargo.toml b/tests/testsuite/cargo_add/locked_changed/out/Cargo.toml
new file mode 100644
index 00000000000..3ecdb668167
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_changed/out/Cargo.toml
@@ -0,0 +1,5 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
diff --git a/tests/testsuite/cargo_add/locked_changed/stderr.log b/tests/testsuite/cargo_add/locked_changed/stderr.log
new file mode 100644
index 00000000000..8af16837396
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_changed/stderr.log
@@ -0,0 +1,3 @@
+    Updating `dummy-registry` index
+      Adding my-package v99999.0.0 to dependencies.
+error: the manifest file [ROOT]/case/Cargo.toml needs to be updated but --locked was passed to prevent this
diff --git a/tests/testsuite/cargo_add/locked_changed/stdout.log b/tests/testsuite/cargo_add/locked_changed/stdout.log
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock
new file mode 100644
index 00000000000..011b335926e
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.lock
@@ -0,0 +1,16 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+dependencies = [
+ "my-package",
+]
+
+[[package]]
+name = "my-package"
+version = "99999.0.0+my-package"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62c45acf9e11d2f97f5b318143219c0b4102eafef1c22a4b545b47104691d915"
diff --git a/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.toml b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.toml
new file mode 100644
index 00000000000..5964c87be74
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/in/Cargo.toml
@@ -0,0 +1,8 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+
+[dependencies]
+my-package = "99999.0.0"
diff --git a/tests/testsuite/cargo_add/locked_unchanged/in/src/lib.rs b/tests/testsuite/cargo_add/locked_unchanged/in/src/lib.rs
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/testsuite/cargo_add/locked_unchanged/mod.rs b/tests/testsuite/cargo_add/locked_unchanged/mod.rs
new file mode 100644
index 00000000000..8352155f93e
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/mod.rs
@@ -0,0 +1,25 @@
+use cargo_test_support::compare::assert_ui;
+use cargo_test_support::prelude::*;
+use cargo_test_support::Project;
+
+use crate::cargo_add::init_registry;
+use cargo_test_support::curr_dir;
+
+#[cargo_test]
+fn locked_unchanged() {
+    init_registry();
+    let project = Project::from_template(curr_dir!().join("in"));
+    let project_root = project.root();
+    let cwd = &project_root;
+
+    snapbox::cmd::Command::cargo_ui()
+        .arg("add")
+        .arg_line("my-package --locked")
+        .current_dir(cwd)
+        .assert()
+        .success()
+        .stdout_matches_path(curr_dir!().join("stdout.log"))
+        .stderr_matches_path(curr_dir!().join("stderr.log"));
+
+    assert_ui().subset_matches(curr_dir!().join("out"), &project_root);
+}
diff --git a/tests/testsuite/cargo_add/locked_unchanged/out/Cargo.toml b/tests/testsuite/cargo_add/locked_unchanged/out/Cargo.toml
new file mode 100644
index 00000000000..5964c87be74
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/out/Cargo.toml
@@ -0,0 +1,8 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+
+[dependencies]
+my-package = "99999.0.0"
diff --git a/tests/testsuite/cargo_add/locked_unchanged/stderr.log b/tests/testsuite/cargo_add/locked_unchanged/stderr.log
new file mode 100644
index 00000000000..fd6b711e386
--- /dev/null
+++ b/tests/testsuite/cargo_add/locked_unchanged/stderr.log
@@ -0,0 +1,2 @@
+    Updating `dummy-registry` index
+      Adding my-package v99999.0.0 to dependencies.
diff --git a/tests/testsuite/cargo_add/locked_unchanged/stdout.log b/tests/testsuite/cargo_add/locked_unchanged/stdout.log
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.lock b/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.lock
new file mode 100644
index 00000000000..d9bcc988d3f
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.lock
@@ -0,0 +1,17 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+dependencies = [
+ "my-package",
+ "unrelateed-crate",
+]
+
+[[package]]
+name = "unrelateed-crate"
+version = "0.2.0+my-package"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "266de4849a570b5dfda5e8e082a2aff885e9d2d4965dae8f8b6c8535e1ec731f"
diff --git a/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.toml b/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.toml
new file mode 100644
index 00000000000..95276d7c584
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/in/Cargo.toml
@@ -0,0 +1,8 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+
+[dependencies]
+unrelateed-crate = "0.2.0"
diff --git a/tests/testsuite/cargo_add/lockfile_updated/in/src/lib.rs b/tests/testsuite/cargo_add/lockfile_updated/in/src/lib.rs
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/testsuite/cargo_add/lockfile_updated/mod.rs b/tests/testsuite/cargo_add/lockfile_updated/mod.rs
new file mode 100644
index 00000000000..41d39efdf5d
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/mod.rs
@@ -0,0 +1,25 @@
+use cargo_test_support::compare::assert_ui;
+use cargo_test_support::prelude::*;
+use cargo_test_support::Project;
+
+use crate::cargo_add::init_registry;
+use cargo_test_support::curr_dir;
+
+#[cargo_test]
+fn lockfile_updated() {
+    init_registry();
+    let project = Project::from_template(curr_dir!().join("in"));
+    let project_root = project.root();
+    let cwd = &project_root;
+
+    snapbox::cmd::Command::cargo_ui()
+        .arg("add")
+        .arg_line("my-package")
+        .current_dir(cwd)
+        .assert()
+        .success()
+        .stdout_matches_path(curr_dir!().join("stdout.log"))
+        .stderr_matches_path(curr_dir!().join("stderr.log"));
+
+    assert_ui().subset_matches(curr_dir!().join("out"), &project_root);
+}
diff --git a/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.lock b/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.lock
new file mode 100644
index 00000000000..4b5fb465f10
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.lock
@@ -0,0 +1,23 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+dependencies = [
+ "my-package",
+ "unrelateed-crate",
+]
+
+[[package]]
+name = "my-package"
+version = "99999.0.0+my-package"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62c45acf9e11d2f97f5b318143219c0b4102eafef1c22a4b545b47104691d915"
+
+[[package]]
+name = "unrelateed-crate"
+version = "0.2.0+my-package"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "266de4849a570b5dfda5e8e082a2aff885e9d2d4965dae8f8b6c8535e1ec731f"
diff --git a/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.toml b/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.toml
new file mode 100644
index 00000000000..3176a986ae7
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/out/Cargo.toml
@@ -0,0 +1,9 @@
+[workspace]
+
+[package]
+name = "cargo-list-test-fixture"
+version = "0.0.0"
+
+[dependencies]
+my-package = "99999.0.0"
+unrelateed-crate = "0.2.0"
diff --git a/tests/testsuite/cargo_add/lockfile_updated/stderr.log b/tests/testsuite/cargo_add/lockfile_updated/stderr.log
new file mode 100644
index 00000000000..fd6b711e386
--- /dev/null
+++ b/tests/testsuite/cargo_add/lockfile_updated/stderr.log
@@ -0,0 +1,2 @@
+    Updating `dummy-registry` index
+      Adding my-package v99999.0.0 to dependencies.
diff --git a/tests/testsuite/cargo_add/lockfile_updated/stdout.log b/tests/testsuite/cargo_add/lockfile_updated/stdout.log
new file mode 100644
index 00000000000..e69de29bb2d
diff --git a/tests/testsuite/cargo_add/mod.rs b/tests/testsuite/cargo_add/mod.rs
index 1eb682ef2ed..ae32bdd2de3 100644
--- a/tests/testsuite/cargo_add/mod.rs
+++ b/tests/testsuite/cargo_add/mod.rs
@@ -48,6 +48,9 @@ mod invalid_vers;
 mod list_features;
 mod list_features_path;
 mod list_features_path_no_default;
+mod locked_changed;
+mod locked_unchanged;
+mod lockfile_updated;
 mod manifest_path_package;
 mod merge_activated_features;
 mod multiple_conflicts_with_features;
@@ -131,6 +134,9 @@ fn add_registry_packages(alt: bool) {
         cargo_test_support::registry::Package::new(name, "0.1.1+my-package")
             .alternative(alt)
             .publish();
+        cargo_test_support::registry::Package::new(name, "0.2.0+my-package")
+            .alternative(alt)
+            .publish();
         cargo_test_support::registry::Package::new(name, "0.2.3+my-package")
             .alternative(alt)
             .publish();
diff --git a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/in/Cargo.toml b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/in/Cargo.toml
index 195d5c7e061..5ef95320946 100644
--- a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/in/Cargo.toml
+++ b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/in/Cargo.toml
@@ -5,9 +5,9 @@ name = "cargo-list-test-fixture"
 version = "0.0.0"
 
 [features]
-default = ["my-package1"]
-other = ["my-package1/nose"]
+default = ["your-face"]
+other = ["your-face/nose"]
 
 [dependencies]
-my-package1 = { version = "99999.0.0", optional = true }
+your-face = { version = "99999.0.0", optional = true }
 my-package2 = { version = "0.4.1", optional = true }
diff --git a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/mod.rs b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/mod.rs
index 48f3e0bfa6d..fce33e2a66b 100644
--- a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/mod.rs
+++ b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/mod.rs
@@ -14,7 +14,7 @@ fn overwrite_optional_with_no_optional() {
 
     snapbox::cmd::Command::cargo_ui()
         .arg("add")
-        .arg_line("my-package1 my-package2@0.4.1 --no-optional")
+        .arg_line("your-face my-package2@0.4.1 --no-optional")
         .current_dir(cwd)
         .assert()
         .success()
diff --git a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/out/Cargo.toml b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/out/Cargo.toml
index 6301685d17e..bf6c52963b8 100644
--- a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/out/Cargo.toml
+++ b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/out/Cargo.toml
@@ -6,8 +6,8 @@ version = "0.0.0"
 
 [features]
 default = []
-other = ["my-package1/nose"]
+other = ["your-face/nose"]
 
 [dependencies]
-my-package1 = { version = "99999.0.0" }
+your-face = { version = "99999.0.0" }
 my-package2 = { version = "0.4.1" }
diff --git a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/stderr.log b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/stderr.log
index fb8d4903d7b..5fe113e86c7 100644
--- a/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/stderr.log
+++ b/tests/testsuite/cargo_add/overwrite_optional_with_no_optional/stderr.log
@@ -1,3 +1,8 @@
     Updating `dummy-registry` index
-      Adding my-package1 v99999.0.0 to dependencies.
+      Adding your-face v99999.0.0 to dependencies.
+             Features:
+             - ears
+             - eyes
+             - mouth
+             - nose
       Adding my-package2 v0.4.1 to dependencies.
diff --git a/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log b/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
index c5013969264..1b77cbe0e35 100644
--- a/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
+++ b/tests/testsuite/cargo_add/overwrite_version_with_git/stderr.log
@@ -1,2 +1,3 @@
     Updating git repository `[ROOTURL]/versioned-package`
       Adding versioned-package (git) to optional dependencies.
+    Updating git repository `[ROOTURL]/versioned-package`
diff --git a/tests/testsuite/cargo_add/preserve_sorted/in/Cargo.toml b/tests/testsuite/cargo_add/preserve_sorted/in/Cargo.toml
index 2716d647883..550e41b07e9 100644
--- a/tests/testsuite/cargo_add/preserve_sorted/in/Cargo.toml
+++ b/tests/testsuite/cargo_add/preserve_sorted/in/Cargo.toml
@@ -5,5 +5,5 @@ name = "cargo-list-test-fixture"
 version = "0.0.0"
 
 [dependencies]
-atty = "0.2.13"
-toml_edit = "0.1.5"
+my-package = "0.1.1"
+versioned-package = "0.1.1"
diff --git a/tests/testsuite/cargo_add/preserve_sorted/out/Cargo.toml b/tests/testsuite/cargo_add/preserve_sorted/out/Cargo.toml
index 88222bd2a22..cacd510ccdf 100644
--- a/tests/testsuite/cargo_add/preserve_sorted/out/Cargo.toml
+++ b/tests/testsuite/cargo_add/preserve_sorted/out/Cargo.toml
@@ -5,6 +5,6 @@ name = "cargo-list-test-fixture"
 version = "0.0.0"
 
 [dependencies]
-atty = "0.2.13"
+my-package = "0.1.1"
 toml = "99999.0.0"
-toml_edit = "0.1.5"
+versioned-package = "0.1.1"
diff --git a/tests/testsuite/cargo_add/preserve_unsorted/in/Cargo.toml b/tests/testsuite/cargo_add/preserve_unsorted/in/Cargo.toml
index 5957df98b62..f803120a3a0 100644
--- a/tests/testsuite/cargo_add/preserve_unsorted/in/Cargo.toml
+++ b/tests/testsuite/cargo_add/preserve_unsorted/in/Cargo.toml
@@ -5,5 +5,5 @@ name = "cargo-list-test-fixture"
 version = "0.0.0"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+versioned-package = "0.1.1"
+my-package = "0.1.1"
diff --git a/tests/testsuite/cargo_add/preserve_unsorted/out/Cargo.toml b/tests/testsuite/cargo_add/preserve_unsorted/out/Cargo.toml
index e01b9255ecc..244a06ab9ae 100644
--- a/tests/testsuite/cargo_add/preserve_unsorted/out/Cargo.toml
+++ b/tests/testsuite/cargo_add/preserve_unsorted/out/Cargo.toml
@@ -5,6 +5,6 @@ name = "cargo-list-test-fixture"
 version = "0.0.0"
 
 [dependencies]
-toml_edit = "0.1.5"
-atty = "0.2.13"
+versioned-package = "0.1.1"
+my-package = "0.1.1"
 toml = "99999.0.0"