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-rw-r--r--Cargo.toml2
-rw-r--r--clippy_dev/Cargo.toml2
-rw-r--r--clippy_lints/Cargo.toml2
-rw-r--r--clippy_utils/Cargo.toml2
4 files changed, 4 insertions, 4 deletions
diff --git a/Cargo.toml b/Cargo.toml
index 2310370fb9f..0954b758cf6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT OR Apache-2.0"
 keywords = ["clippy", "lint", "plugin"]
 categories = ["development-tools", "development-tools::cargo-plugins"]
 build = "build.rs"
-edition = "2018"
+edition = "2021"
 publish = false
 
 [[bin]]
diff --git a/clippy_dev/Cargo.toml b/clippy_dev/Cargo.toml
index 0fae8c7b9af..8bdb77a44f3 100644
--- a/clippy_dev/Cargo.toml
+++ b/clippy_dev/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "clippy_dev"
 version = "0.0.1"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 bytecount = "0.6"
diff --git a/clippy_lints/Cargo.toml b/clippy_lints/Cargo.toml
index 3c28024bf92..e3c30573c20 100644
--- a/clippy_lints/Cargo.toml
+++ b/clippy_lints/Cargo.toml
@@ -6,7 +6,7 @@ repository = "https://github.com/rust-lang/rust-clippy"
 readme = "README.md"
 license = "MIT OR Apache-2.0"
 keywords = ["clippy", "lint", "plugin"]
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 cargo_metadata = "0.12"
diff --git a/clippy_utils/Cargo.toml b/clippy_utils/Cargo.toml
index 4c038a99795..ca1908392b3 100644
--- a/clippy_utils/Cargo.toml
+++ b/clippy_utils/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "clippy_utils"
 version = "0.1.57"
-edition = "2018"
+edition = "2021"
 publish = false
 
 [dependencies]