diff --git a/Dockerfile b/Dockerfile
index 4bbc25f5a..834a9eebb 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Run 'make docker' to build a statically linked vis executable!
-FROM i386/alpine:3.20
+FROM i386/alpine:3.21
 RUN apk update && apk add --upgrade --no-cache \
 	acl-dev \
 	acl-static \