diff --git a/package.json b/package.json
index 780c3fe..afe41ed 100644
--- a/package.json
+++ b/package.json
@@ -15,7 +15,7 @@
     "@wmfs/cardscript-schema": "1.5.0"
   },
   "devDependencies": {
-    "chai": "4.2.0",
+    "chai": "4.3.4",
     "mocha": "6.2.3",
     "standard": "12.0.1"
   },