diff --git a/tests/docker/backends/backend.Dockerfile b/tests/docker/backends/backend.Dockerfile
index f211190..ba349d3 100644
--- a/tests/docker/backends/backend.Dockerfile
+++ b/tests/docker/backends/backend.Dockerfile
@@ -1,5 +1,5 @@
 # Pinned to the digest of python:3.12-slim for supply-chain integrity; tag kept for readability: 3.12-slim
-FROM python:3.14-slim@sha256:cea0e6040540fb2b965b6e7fb5ffa00871e632eef63719f0ea54bca189ce14a6
+FROM python:3.14-slim@sha256:ce40764625a4ff50df3548277632e7f96c4e77fe75fa848aae9885476e7df5a4
 
 WORKDIR /app