diff --git a/Dockerfile b/Dockerfile
index 0303bd8..52d775d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.19
+FROM alpine:3.20
 MAINTAINER Matthew Horwood <matt@horwood.biz>
 
 RUN apk update                             \