diff --git a/docker/ipref3/Dockerfile b/docker/ipref3/Dockerfile
index e8a09bb..7cdaa06 100644
--- a/docker/ipref3/Dockerfile
+++ b/docker/ipref3/Dockerfile
@@ -1,5 +1,5 @@
 # Reference image
-FROM alpine:3.20
+FROM alpine:3.21
 
 # Metadata
 LABEL org.opencontainers.image.authors="Daniel Wydler"