diff --git a/package.json b/package.json
index 8e92371..b26e085 100644
--- a/package.json
+++ b/package.json
@@ -23,6 +23,6 @@
     "bignumber.js": "^7.2.1",
     "ccxt": "^1.18.609",
     "slackbots": "^1.1.0",
-    "yargs": "^12.0.1"
+    "yargs": "^15.0.1"
   }
 }