diff --git a/.github/workflows/checks.yml b/.github/workflows/checks.yml
index 5fb91cb..814fe19 100644
--- a/.github/workflows/checks.yml
+++ b/.github/workflows/checks.yml
@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-      - uses: openapi-generators/openapi-python-client-action@v2
+      - uses: openapi-generators/openapi-python-client-action@58cf278ec5933c3867503056edcfceb028dda69e # v2.1.0
         with:
           openapi-url: https://raw.githubusercontent.com/openapi-generators/openapi-python-client/main/end_to_end_tests/baseline_openapi_3.0.json