diff --git a/cryptovec/Cargo.toml b/cryptovec/Cargo.toml
index 5db6c2ac..5d919665 100644
--- a/cryptovec/Cargo.toml
+++ b/cryptovec/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Pierre-Étienne Meunier <pe@pijul.org>", "Eugeny <e@ajenti.org"]
 description = "A vector which zeroes its memory on clears and reallocations."
 documentation = "https://docs.rs/russh-cryptovec"
-edition = "2018"
+edition = "2021"
 license = "Apache-2.0"
 name = "russh-cryptovec"
 repository = "https://github.com/warp-tech/russh"
diff --git a/pageant/Cargo.toml b/pageant/Cargo.toml
index 46083cb0..12c2510e 100644
--- a/pageant/Cargo.toml
+++ b/pageant/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Eugene <inbox@null.page>"]
 description = "Pageant SSH agent transport client."
 documentation = "https://docs.rs/pageant"
-edition = "2018"
+edition = "2021"
 license = "Apache-2.0"
 name = "pageant"
 repository = "https://github.com/warp-tech/russh"
diff --git a/russh-config/Cargo.toml b/russh-config/Cargo.toml
index 3dc841b4..04aa2eb6 100644
--- a/russh-config/Cargo.toml
+++ b/russh-config/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Pierre-Étienne Meunier <pe@pijul.org>"]
 description = "Utilities to parse .ssh/config files, including helpers to implement ProxyCommand in Russh."
 documentation = "https://docs.rs/russh-config"
-edition = "2018"
+edition = "2021"
 include = ["Cargo.toml", "src/lib.rs", "src/proxy.rs"]
 license = "Apache-2.0"
 name = "russh-config"
diff --git a/russh-keys/Cargo.toml b/russh-keys/Cargo.toml
index 068c5ccb..dc935193 100644
--- a/russh-keys/Cargo.toml
+++ b/russh-keys/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Pierre-Étienne Meunier <pe@pijul.org>"]
 description = "Deal with SSH keys: load them, decrypt them, call an SSH agent."
 documentation = "https://docs.rs/russh-keys"
-edition = "2018"
+edition = "2021"
 homepage = "https://github.com/warp-tech/russh"
 keywords = ["ssh"]
 license = "Apache-2.0"
diff --git a/russh/Cargo.toml b/russh/Cargo.toml
index e113f715..6627e5fb 100644
--- a/russh/Cargo.toml
+++ b/russh/Cargo.toml
@@ -2,7 +2,7 @@
 authors = ["Pierre-Étienne Meunier <pe@pijul.org>"]
 description = "A client and server SSH library."
 documentation = "https://docs.rs/russh"
-edition = "2018"
+edition = "2021"
 homepage = "https://github.com/warp-tech/russh"
 keywords = ["ssh"]
 license = "Apache-2.0"