diff --git a/Dockerfile b/Dockerfile
index f4c6700..8f6e91e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # docker build -t simplesamlphp .
 
-FROM alpine:3.15
+FROM alpine:3.16
 LABEL maintainer="filip@chy.la"
 LABEL description="SimpleSAMLphp application on Alpine based image with apache2 and php7."