diff --git a/taskcluster/docker/python/Dockerfile b/taskcluster/docker/python/Dockerfile
index 108de15..4a91ea4 100644
--- a/taskcluster/docker/python/Dockerfile
+++ b/taskcluster/docker/python/Dockerfile
@@ -2,7 +2,7 @@
 # License, v. 2.0. If a copy of the MPL was not distributed with this
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
-FROM debian:bookworm-slim@sha256:74d56e3931e0d5a1dd51f8c8a2466d21de84a271cd3b5a733b803aa91abf4421
+FROM debian:13-slim@sha256:1d3c811171a08a5adaa4a163fbafd96b61b87aa871bbc7aa15431ac275d3d430
 LABEL maintainer="Mozilla Release Engineering <release@mozilla.com>"
 
 VOLUME /builds/worker/checkouts