diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index af441597..8e403514 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -6,7 +6,6 @@ components = [
     "rust-analyzer",
     "rust-src",
     "rust-std",
-    "rustc-dev",
     "rustc",
     "rustfmt",
 ]