diff --git a/README.md b/README.md
index 178d277..280b472 100644
--- a/README.md
+++ b/README.md
@@ -58,6 +58,7 @@ Options:
     --base_url BASE_URL   The base URL of your GitHub instance (useful for enterprise users with custom hostnames). Default: https://api.github.com
     --log_level {error,critical,warning,info,debug}
                             The log level used for the tool. Default: info
+    --version             show program's version number and exit
 ```
 
 ### Authentication