diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index a667ef3..7dfadb8 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,4 +24,4 @@ jobs:
       - run: cargo build --verbose
       - run: cargo test --verbose
       - run: cargo clippy --verbose --tests --all-targets --all-features -- -D warnings
-      - run: cargo fmt --verbose
+      - run: cargo fmt --check --verbose