diff --git a/.github/workflows/codegen.yml b/.github/workflows/codegen.yml
index ac8c02704..932c66362 100644
--- a/.github/workflows/codegen.yml
+++ b/.github/workflows/codegen.yml
@@ -66,7 +66,7 @@ jobs:
             -o conformance/generated/messaging/types.gen.d.ts
 
       # ── Python types (datamodel-code-generator / pydantic v2) ────────────
-      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+      - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6
         with:
           python-version: '3.12'
       - name: Install datamodel-code-generator