diff --git a/README.md b/README.md
index f9b6f33..ef06590 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@
     - [cli.command(name, description)](#clicommandname-description)
     - [cli.option(name, description, config?)](#clioptionname-description-config)
     - [cli.parse(argv?)](#cliparseargv)
-    - [cli.version(version)](#cliversionversion)
+    - [cli.version(version, customFlags?)](#cliversionversion-customflags)
     - [cli.help(callback?)](#clihelpcallback)
     - [cli.outputHelp(subCommand?)](#clioutputhelpsubcommand)
   - [Command Instance](#command-instance)
@@ -268,9 +268,9 @@ interface ParsedArgv {
 
 When this method is called, `cli.rawArgs` `cli.args` `cli.options` `cli.matchedCommand` will also be available.
 
-#### cli.version(version)
+#### cli.version(version, customFlags?)
 
-- Type: `(version: string) => CLI`
+- Type: `(version: string, customFlags = '-v, --version') => CLI`
 
 Output version number when `-v, --version` flag appears.
 
diff --git a/src/Command.ts b/src/Command.ts
index e7eeeee..eb37c20 100644
--- a/src/Command.ts
+++ b/src/Command.ts
@@ -59,9 +59,9 @@ export default class Command {
     return this
   }
 
-  version(version: string) {
+  version(version: string, customFlags = '-v, --version') {
     this.versionNumber = version
-    this.option('-v, --version', 'Display version number')
+    this.option(customFlags, 'Display version number')
     return this
   }
 
diff --git a/src/index.ts b/src/index.ts
index 7fa5f25..dbabe19 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -64,8 +64,8 @@ class CAC extends EventEmitter {
     return this
   }
 
-  version(version: string) {
-    this.globalCommand.version(version)
+  version(version: string, customFlags = '-v, --version') {
+    this.globalCommand.version(version, customFlags)
     return this
   }