diff --git a/clippy_utils/Cargo.toml b/clippy_utils/Cargo.toml
index ffc89be0ae5..4c038a99795 100644
--- a/clippy_utils/Cargo.toml
+++ b/clippy_utils/Cargo.toml
@@ -6,10 +6,6 @@ publish = false
 
 [dependencies]
 if_chain = "1.0.0"
-itertools = "0.9"
-regex-syntax = "0.6"
-serde = { version = "1.0", features = ["derive"] }
-unicode-normalization = "0.1"
 rustc-semver="1.1.0"
 
 [features]