diff --git a/3.9/Dockerfile b/3.9/Dockerfile
index 7dd2d84..7852ef2 100644
--- a/3.9/Dockerfile
+++ b/3.9/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.9.5-slim-buster@sha256:80b238ba357d98813bcc425f505dfa238f49cf5f895492fc2667af118dccaa44
+FROM python:3.9.5-slim-buster@sha256:0a6e8c0c40a10e22707dde226f9f1de0ba7fff62ecb20d50edc7e9c01979fddc
 
 # renovate: datasource=pypi depName=poetry versioning=semver
 ENV POETRY_VERSION 1.1.6