diff --git a/Dockerfile b/Dockerfile
index ef8993c..c3c00d8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20
+FROM alpine:3.21
 
 # This hack is widely applied to avoid python printing issues in docker containers.
 # See: https://github.com/Docker-Hub-frolvlad/docker-alpine-python3/pull/13