diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 832986def..79ed7bc84 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -21,8 +21,7 @@ defaults:
 env:
   CARGO_INCREMENTAL: 0
   CACHE_KEY: Linux-cargo-nightly-x86_64-unknown-linux-gnu
-  # RUSTFLAGS: -D warnings -W unreachable-pub -W rust-2021-compatibility
-  RUSTFLAGS: -D warnings -W rust-2021-compatibility
+  RUSTFLAGS: -D warnings -W unreachable-pub -W rust-2021-compatibility
   RUSTUP_MAX_RETRIES: 10
 
 jobs: