diff --git a/diesel_codegen/README.md b/diesel_codegen/README.md
index b97f7249f04d..ec64249b5883 100644
--- a/diesel_codegen/README.md
+++ b/diesel_codegen/README.md
@@ -35,8 +35,6 @@ the `features` section.
 Next, at the root of your crate add:
 
 ```rust
-#![feature(proc_macro)]
-
 #[macro_use] extern crate diesel_codegen;
 ```
 
diff --git a/diesel_compile_tests/tests/compile-fail/codegen_does_not_add_save_changes_method_on_structs_without_primary_key.rs b/diesel_compile_tests/tests/compile-fail/codegen_does_not_add_save_changes_method_on_structs_without_primary_key.rs
index 08e5ae2dd7f7..f39ae54c1ff0 100644
--- a/diesel_compile_tests/tests/compile-fail/codegen_does_not_add_save_changes_method_on_structs_without_primary_key.rs
+++ b/diesel_compile_tests/tests/compile-fail/codegen_does_not_add_save_changes_method_on_structs_without_primary_key.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_compile_tests/tests/compile-fail/custom_returning_requires_nonaggregate.rs b/diesel_compile_tests/tests/compile-fail/custom_returning_requires_nonaggregate.rs
index ff8222c912c8..5446d57302eb 100644
--- a/diesel_compile_tests/tests/compile-fail/custom_returning_requires_nonaggregate.rs
+++ b/diesel_compile_tests/tests/compile-fail/custom_returning_requires_nonaggregate.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_compile_tests/tests/compile-fail/custom_returning_requires_selectable_expression.rs b/diesel_compile_tests/tests/compile-fail/custom_returning_requires_selectable_expression.rs
index 2c96a9596530..2ea7fdc81536 100644
--- a/diesel_compile_tests/tests/compile-fail/custom_returning_requires_selectable_expression.rs
+++ b/diesel_compile_tests/tests/compile-fail/custom_returning_requires_selectable_expression.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_compile_tests/tests/compile-fail/identifiable_requires_primary_key_field.rs b/diesel_compile_tests/tests/compile-fail/identifiable_requires_primary_key_field.rs
index 35c698e11334..4188b15f623f 100644
--- a/diesel_compile_tests/tests/compile-fail/identifiable_requires_primary_key_field.rs
+++ b/diesel_compile_tests/tests/compile-fail/identifiable_requires_primary_key_field.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_compile_tests/tests/compile-fail/insertable_into_does_not_support_generics.rs b/diesel_compile_tests/tests/compile-fail/insertable_into_does_not_support_generics.rs
index 4720450ff5ca..426fb3e168bf 100644
--- a/diesel_compile_tests/tests/compile-fail/insertable_into_does_not_support_generics.rs
+++ b/diesel_compile_tests/tests/compile-fail/insertable_into_does_not_support_generics.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_compile_tests/tests/compile-fail/sqlite_upsert_cannot_be_used_on_pg.rs b/diesel_compile_tests/tests/compile-fail/sqlite_upsert_cannot_be_used_on_pg.rs
index edcdfc74f77d..17e2819eb0b8 100644
--- a/diesel_compile_tests/tests/compile-fail/sqlite_upsert_cannot_be_used_on_pg.rs
+++ b/diesel_compile_tests/tests/compile-fail/sqlite_upsert_cannot_be_used_on_pg.rs
@@ -1,5 +1,3 @@
-#![feature(proc_macro)]
-
 #[macro_use]
 extern crate diesel;
 #[macro_use]
diff --git a/diesel_tests/tests/bench.rs b/diesel_tests/tests/bench.rs
index 458e4347ffc9..f2b63d7daa1f 100644
--- a/diesel_tests/tests/bench.rs
+++ b/diesel_tests/tests/bench.rs
@@ -1,4 +1,4 @@
-#![feature(proc_macro, test)]
+#![feature(test)]
 
 #![allow(non_snake_case)]