diff --git a/package.json b/package.json
index 81f1f6d3d..774a801e4 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
     "tapable": "2.0.0-beta.8",
     "terser-webpack-plugin": "^2.2.1",
     "watchpack": "2.0.0-beta.10",
-    "webpack-sources": "2.0.0-beta.7"
+    "webpack-sources": "2.0.0-beta.8"
   },
   "devDependencies": {
     "@babel/core": "^7.7.2",
diff --git a/yarn.lock b/yarn.lock
index 96d9896f6..dffd13129 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6545,10 +6545,10 @@ webidl-conversions@^4.0.2:
   resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-4.0.2.tgz#a855980b1f0b6b359ba1d5d9fb39ae941faa63ad"
   integrity sha512-YQ+BmxuTgd6UXZW3+ICGfyqRyHXVlD5GtQr5+qjiNW7bF0cqrzX500HVXPBOvgXb5YnzDd+h0zqyv61KUD7+Sg==
 
-webpack-sources@2.0.0-beta.7:
-  version "2.0.0-beta.7"
-  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-2.0.0-beta.7.tgz#525b4caaef7371fd7f8bf7e5fffe692880038926"
-  integrity sha512-jbUJbBcU/PHABhHDtUfXCSU6wD6dYOBMH4oIQnXxyapigyuOSHdkmqENayzV+3OEK8tm45qRQD/ggtyAMxqjAQ==
+webpack-sources@2.0.0-beta.8:
+  version "2.0.0-beta.8"
+  resolved "https://registry.yarnpkg.com/webpack-sources/-/webpack-sources-2.0.0-beta.8.tgz#0fc292239f6767cf4e9b47becfaa340ce6d7ea4f"
+  integrity sha512-RUaCJu7HYNeuzlY4WYcArcnOzMIj7kHndQ4pBdgP3iiMpG3Ke0BWY5wvb/VEFgsIXp3ZzPGRECwX+4fgpcKFYw==
   dependencies:
     source-list-map "^2.0.1"
     source-map "~0.6.1"