diff --git a/.github/workflows/synkronus-cli-docker.yml b/.github/workflows/synkronus-cli-docker.yml
index 0a5b3ff21..1560e3530 100644
--- a/.github/workflows/synkronus-cli-docker.yml
+++ b/.github/workflows/synkronus-cli-docker.yml
@@ -289,7 +289,7 @@ jobs:
           echo "digest=${DIGEST}" >> "${GITHUB_OUTPUT}"
 
       - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@v1
+        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4
         with:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           subject-digest: ${{ steps.manifest-digest.outputs.digest }}
diff --git a/.github/workflows/synkronus-docker.yml b/.github/workflows/synkronus-docker.yml
index 5681fe50e..c1ffefc0b 100644
--- a/.github/workflows/synkronus-docker.yml
+++ b/.github/workflows/synkronus-docker.yml
@@ -337,7 +337,7 @@ jobs:
           echo "digest=${DIGEST}" >> "${GITHUB_OUTPUT}"
 
       - name: Generate artifact attestation
-        uses: actions/attest-build-provenance@ef244123eb79f2f7a7e75d99086184180e6d0018 # v1
+        uses: actions/attest-build-provenance@4d101475d8b20a2381f78447822ac1eab6504dd8 # v4
         with:
           subject-name: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
           subject-digest: ${{ steps.manifest-digest.outputs.digest }}