diff --git a/Dockerfile b/Dockerfile
index c07f60b..4d65d66 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.8
+FROM alpine:3.9
 LABEL Maintainer="Tim de Pater <code@trafex.nl>" \
       Description="Lightweight container with Nginx 1.14 & PHP-FPM 7.2 based on Alpine Linux."