diff --git a/package.json b/package.json
index d81d0f8..ee6ee35 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "eslint-plugin-standard": "4.0.0",
     "istanbul": "0.4.5",
     "mocha": "6.1.4",
-    "supertest": "3.4.2"
+    "supertest": "4.0.2"
   },
   "files": [
     "public/",