diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9b5f3d0..8565cdf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,7 +74,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v7
-      - uses: haskell-actions/run-ormolu@v20
+      - uses: haskell-actions/run-ormolu@v21
   release:
     if: ${{ github.event_name == 'release' }}
     name: Release