diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 00b454d..e0ebe70 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -41,7 +41,7 @@ jobs:
       # Produces smartchain.zip.sigstore alongside the zip, which any
       # downstream consumer can verify with `sigstore verify identity`.
       - name: Sign release artifact (sigstore)
-        uses: sigstore/gh-action-sigstore-python@v3.0.1
+        uses: sigstore/gh-action-sigstore-python@v3.3.0
         with:
           inputs: smartchain.zip