diff --git a/package.json b/package.json
index 2b46abe..ffd7a76 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
 	"author": "Tournant <team@tournant.dev> (http://www.tournant.dev)",
 	"license": "MIT",
 	"dependencies": {
-		"arg": "^4.1.1",
+		"arg": "^4.1.3",
 		"chalk": "^2.4.2",
 		"esm": "^3.2.25",
 		"execa": "^3.2.0",
diff --git a/yarn.lock b/yarn.lock
index 9a81e66..c283e74 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -66,10 +66,10 @@ ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
-arg@^4.1.1:
-  version "4.1.1"
-  resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.1.tgz#485f8e7c390ce4c5f78257dbea80d4be11feda4c"
-  integrity sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw==
+arg@^4.1.3:
+  version "4.1.3"
+  resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.3.tgz#269fc7ad5b8e42cb63c896d5666017261c144089"
+  integrity sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==
 
 array-union@^2.1.0:
   version "2.1.0"