diff --git a/Makefile b/Makefile
index a2579bb..ae4cdfb 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION     := 0.3.0
+VERSION     := 0.3.1
 GO_BUILDOPT := -ldflags '-s -w -X main.version $(VERSION)'
 
 gom:
diff --git a/README.md b/README.md
index 5a919f8..02d9df9 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-## ohgi v0.3.0
+## ohgi v0.3.1
 
 ![image.png](https://raw.githubusercontent.com/hico-horiuchi/ohgi/master/image.png)