diff --git a/services/update-selectors/Dockerfile b/services/update-selectors/Dockerfile
index 9d8f79254d..444809fea6 100644
--- a/services/update-selectors/Dockerfile
+++ b/services/update-selectors/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.11.11-slim-bookworm AS python-builder
+FROM python:3.13.5-slim-bookworm AS python-builder
 
 # Copy local code to the container image.
 ENV PYTHONWARNINGS ignore
@@ -21,7 +21,7 @@ RUN pip3 install --prefix=/working/install -r /requirements.txt
 #===============================================================================================
 #===============================================================================================
 
-FROM python:3.11.11-slim-bookworm
+FROM python:3.13.5-slim-bookworm
 
 # Copy local code to the container image.
 ENV PYTHONUNBUFFERED 1