diff --git a/Dockerfile b/Dockerfile
index 499498e..6e5c0b1 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.8.7-slim-buster@sha256:ef1eb4df15396b7d660fe99f1a8ad6b54812420e243fc13b22733218fd03b1b1
+FROM python:3.8.8-slim-buster@sha256:3efd67cc8c7c6038201c9715658a0a0ad6e547d5308982245dbb850e32e95004
 
 # renovate: datasource=pypi depName=determine-docker-tags versioning=semver
 ENV DETERMINE_DOCKER_TAGS_VERSION 0.1.5