diff --git a/slim/Dockerfile b/slim/Dockerfile
index 81d9a4a..393e9e4 100644
--- a/slim/Dockerfile
+++ b/slim/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.7
+FROM alpine:3.8
 
 ENV GPG_KEY D5823CACB477191CAC0075555AE420CC0209989E