diff --git a/clippy_config/Cargo.toml b/clippy_config/Cargo.toml
index 3f18a0bc7d25..638fdc524842 100644
--- a/clippy_config/Cargo.toml
+++ b/clippy_config/Cargo.toml
@@ -3,7 +3,7 @@ name = "clippy_config"
 # begin autogenerated version
 version = "0.1.85"
 # end autogenerated version
-edition = "2021"
+edition = "2024"
 publish = false
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/clippy_dev/Cargo.toml b/clippy_dev/Cargo.toml
index d3a103eaf4c6..47b7b3758613 100644
--- a/clippy_dev/Cargo.toml
+++ b/clippy_dev/Cargo.toml
@@ -2,7 +2,7 @@
 name = "clippy_dev"
 description = "Clippy developer tooling"
 version = "0.0.1"
-edition = "2021"
+edition = "2024"
 
 [dependencies]
 aho-corasick = "1.0"
diff --git a/clippy_lints/Cargo.toml b/clippy_lints/Cargo.toml
index c1f8e82f6988..37d9d438300a 100644
--- a/clippy_lints/Cargo.toml
+++ b/clippy_lints/Cargo.toml
@@ -8,7 +8,7 @@ repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
 license = "MIT OR Apache-2.0"
 keywords = ["clippy", "lint", "plugin"]
-edition = "2021"
+edition = "2024"
 
 [dependencies]
 arrayvec = { version = "0.7", default-features = false }
diff --git a/clippy_utils/Cargo.toml b/clippy_utils/Cargo.toml
index 945827c98c17..8497e22dfca7 100644
--- a/clippy_utils/Cargo.toml
+++ b/clippy_utils/Cargo.toml
@@ -3,7 +3,7 @@ name = "clippy_utils"
 # begin autogenerated version
 version = "0.1.85"
 # end autogenerated version
-edition = "2021"
+edition = "2024"
 description = "Helpful tools for writing lints, provided as they are used in Clippy"
 repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
diff --git a/lintcheck/Cargo.toml b/lintcheck/Cargo.toml
index b0e4e3e3e573..55e588f5ec73 100644
--- a/lintcheck/Cargo.toml
+++ b/lintcheck/Cargo.toml
@@ -6,7 +6,7 @@ readme = "README.md"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/rust-lang/rust-clippy"
 categories = ["development-tools"]
-edition = "2021"
+edition = "2024"
 publish = false
 default-run = "lintcheck"