diff --git a/3.9/Dockerfile b/3.9/Dockerfile
index 7852ef2..98a1407 100644
--- a/3.9/Dockerfile
+++ b/3.9/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.9.5-slim-buster@sha256:0a6e8c0c40a10e22707dde226f9f1de0ba7fff62ecb20d50edc7e9c01979fddc
+FROM python:3.9.5-slim-buster@sha256:8349e052ebd0c3ae4171ae0257a666ccce893f77d28896db83e3a719499603ba
 
 # renovate: datasource=pypi depName=poetry versioning=semver
 ENV POETRY_VERSION 1.1.6