diff --git a/package.json b/package.json
index 599d0d78..0fdc3c65 100644
--- a/package.json
+++ b/package.json
@@ -53,7 +53,7 @@
     "import-fresh": "2.0.0",
     "jsdoc-to-markdown": "5.0.0",
     "mime": "2.0.3",
-    "mocha": "^6.2.0",
+    "mocha": "2.5.3",
     "mockery": "2.1.0",
     "npm-run-all": "4.0.1",
     "nyc": "14.1.1",