diff --git a/package.json b/package.json
index 2918097..cefe462 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "jpeg-js": "^0.3.5",
     "mime": "^2.4.4",
     "pngjs": "^3.4.0",
-    "yargs": "^14.2.0"
+    "yargs": "^15.0.1"
   },
   "devDependencies": {
     "cloc": "^2.5.0",