diff --git a/package.json b/package.json
index bdb4e65..b5d8865 100644
--- a/package.json
+++ b/package.json
@@ -31,11 +31,11 @@
     "babel-eslint": "7.2.3",
     "babel-loader": "7.1.5",
     "babel-preset-env": "1.7.0",
-    "eslint": "^3.19.0",
-    "eslint-config-scratch": "^3.1.0",
-    "tap": "^12.0.1",
-    "web-audio-test-api": "^0.5.2",
-    "webpack": "^4.8.0",
-    "webpack-cli": "^3.1.2"
+    "eslint": "3.19.0",
+    "eslint-config-scratch": "3.1.0",
+    "tap": "12.7.0",
+    "web-audio-test-api": "0.5.2",
+    "webpack": "4.46.0",
+    "webpack-cli": "3.3.12"
   }
 }