diff --git a/Dockerfile b/Dockerfile
index 5d7bfe3..7489f62 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.15
+FROM golang:1.16
 
 # upgrade git to v2.30.1
 RUN curl -SL https://github.com/git/git/archive/v2.30.1.tar.gz \
diff --git a/README.md b/README.md
index 8271945..a081937 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 a docker imamge for gitea ci test
 
-- From golang:1.15
+- From golang:1.16
 - upgrade git to v2.30.1
 - install git-lfs
 - install [golangci-lint](https://github.com/golangci/golangci-lint) v1.37.0