diff --git a/Dockerfile b/Dockerfile
index 7b1936b..30562fc 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.12.4-alpine
+FROM golang:1.12.5-alpine
 
 COPY . $GOPATH/src/github.com/gojp/goreportcard