diff --git a/package.json b/package.json
index 107e555..c03a883 100644
--- a/package.json
+++ b/package.json
@@ -21,9 +21,9 @@
   },
   "homepage": "https://github.com/JustinBeckwith/yes-https#readme",
   "devDependencies": {
-    "express": "^4.16.3",
-    "mocha": "^6.0.0",
-    "request": "^2.87.0",
-    "supertest": "^4.0.0"
+    "express": "4.16.3",
+    "mocha": "6.0.0",
+    "request": "2.87.0",
+    "supertest": "4.0.0"
   }
 }