diff --git a/build/Dockerfile b/build/Dockerfile
index 834a06103f6b..5a6139277b12 100644
--- a/build/Dockerfile
+++ b/build/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.14
+FROM golang:1.15.0
 
 # don't place it into $GOPATH/bin because Drone mounts $GOPATH as volume
 COPY golangci-lint /usr/bin/
diff --git a/build/Dockerfile.alpine b/build/Dockerfile.alpine
index 61067b141d4d..2d97967e8012 100644
--- a/build/Dockerfile.alpine
+++ b/build/Dockerfile.alpine
@@ -1,4 +1,4 @@
-FROM golang:1.14-alpine
+FROM golang:1.15.0
 
 # gcc is required to support cgo;
 # git and mercurial are needed most times for go get`, etc.