diff --git a/Dockerfile b/Dockerfile
index 0f96356..92eda9c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.8
 LABEL maintainer="Sebastian Hugentobler <sebastian@vanwa.ch>"
 
 ENV S6_OVERLAY_VERSION=v1.21.4.0