diff --git a/attestor/Dockerfile b/attestor/Dockerfile
index 915ec7ce8a0..728336bd9b3 100644
--- a/attestor/Dockerfile
+++ b/attestor/Dockerfile
@@ -21,7 +21,7 @@ ARG TARGETOS
 ARG TARGETARCH
 RUN make build-attestor
 
-FROM gcr.io/google-appengine/debian11@sha256:fed7dd5b2c4bbfb70bd26a277cdaff98dced71f113632ccd5451dcc013fce0a4
+FROM gcr.io/google-appengine/debian11@sha256:97dc4fbf18419ef928bcddb865ccf0536d4cc39ae3ace5a2b4273c11aedbea82
 COPY --from=build /src/scorecard/attestor /
 ENTRYPOINT [ "/scorecard-attestor" ]