diff --git a/.github/workflows/sigstore.yml b/.github/workflows/sigstore.yml
index f787aca..1d183d5 100644
--- a/.github/workflows/sigstore.yml
+++ b/.github/workflows/sigstore.yml
@@ -34,7 +34,7 @@ jobs:
         run: python -m build
 
       - name: Sign with Sigstore
-        uses: sigstore/gh-action-sigstore-python@04cffa1d795717b140764e8b640de88853c92acc # v3.3.0
+        uses: sigstore/gh-action-sigstore-python@5b79a39c381910c090341a2c9b0bf022c8b387e1 # v3.4.0
         with:
           inputs: ./dist/*.tar.gz ./dist/*.whl