diff --git a/.github/workflows/mutation-testing.yml b/.github/workflows/mutation-testing.yml
index 31c58d37..c8d9d726 100644
--- a/.github/workflows/mutation-testing.yml
+++ b/.github/workflows/mutation-testing.yml
@@ -18,7 +18,7 @@ jobs:
     permissions:
       contents: read
       id-token: write # OIDC workflow-source resolution
-    uses: leynos/shared-actions/.github/workflows/mutation-mutmut.yml@18bed1ca49a6de3d8882bd72635a32ae3f023d57
+    uses: leynos/shared-actions/.github/workflows/mutation-mutmut.yml@1c1a46f0b4fde6dd78a9757fc475a5d06ee891c7
     with:
       # Flat layout: the mutable source lives in lading/, not src/.
       paths: "lading/"