diff --git a/package.json b/package.json
index 87f9716..c9c3ee7 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "ts-jest": "^22.4.6",
     "ts-loader": "^4.2.0",
     "typescript": "^2.8.3",
-    "webpack": "^4.7.0",
+    "webpack": "4.7.0",
     "webpack-cli": "^2.1.2"
   },
   "dependencies": {