diff --git a/package.json b/package.json
index 51500a2..0ad79b9 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   },
   "dependencies": {
     "bluebird": "^3.5.0",
-    "chai": "~4.2.0",
+    "chai": "~4.3.7",
     "commander": "~6.2.0",
     "debug": "~4.3.1",
     "fbp": "^1.7.0",