diff --git a/readme.md b/readme.md
index 066d7e6..6b6ef37 100644
--- a/readme.md
+++ b/readme.md
@@ -192,6 +192,13 @@ You can see the exact location of the cache by simply running the following line
 > require('env-paths')('jay-repl').cache
 ```
 
+## How to find out the jay version installed?
+
+There is a cli flag `--version` that shows the jay version.
+
+```bash
+$ jay --version # jay version is 0.2.2
+```
 
 # Contributing
 
diff --git a/source/cli.ts b/source/cli.ts
index 2306226..e8c691f 100644
--- a/source/cli.ts
+++ b/source/cli.ts
@@ -57,6 +57,11 @@ if (semver.lt(process.version, '10.0.0')) {
 	process.exit(1)
 }
 
+if (process.argv[2] === '--version') {
+	console.log(c.magenta(`jay version is ${packageJson.version}`))
+	process.exit()
+}
+
 updateNotifier({
 	pkg: packageJson
 }).notify()