diff --git a/3.9/Dockerfile b/3.9/Dockerfile
index dc7a5b7..7dd2d84 100644
--- a/3.9/Dockerfile
+++ b/3.9/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.9.5-slim-buster@sha256:e4b19f10c7292d3d6b9348982fa8748587ab6d8b9c8125757e356dc9ba678586
+FROM python:3.9.5-slim-buster@sha256:80b238ba357d98813bcc425f505dfa238f49cf5f895492fc2667af118dccaa44
 
 # renovate: datasource=pypi depName=poetry versioning=semver
 ENV POETRY_VERSION 1.1.6