diff --git a/README.md b/README.md
index 37d5717..9d0b3d8 100644
--- a/README.md
+++ b/README.md
@@ -15,16 +15,10 @@
 
 ## Installation
 ### from the source
-**go1.17**
 ```
 go install github.com/hahwul/jwt-hack@latest
 ```
 
-**go1.16**
-```
-GO111MODULE=on go get -u github.com/hahwul/jwt-hack
-```
-
 ### homebrew
 ```
 brew tap hahwul/jwt-hack