diff --git a/src/CssDependency.js b/src/CssDependency.js
index d55fb3f9..d7d302e6 100644
--- a/src/CssDependency.js
+++ b/src/CssDependency.js
@@ -41,7 +41,7 @@ class CssDependency extends webpack.Dependency {
 if (webpack.util && webpack.util.serialization) {
   webpack.util.serialization.register(
     CssDependency,
-    'mini-css-extract-plugin/src/CssDependency',
+    'mini-css-extract-plugin/dist/CssDependency',
     null,
     {
       serialize(instance, context) {
diff --git a/src/CssModule.js b/src/CssModule.js
index 1025370d..80839d62 100644
--- a/src/CssModule.js
+++ b/src/CssModule.js
@@ -96,7 +96,7 @@ class CssModule extends webpack.Module {
 if (webpack.util && webpack.util.serialization) {
   webpack.util.serialization.register(
     CssModule,
-    'mini-css-extract-plugin/src/CssModule',
+    'mini-css-extract-plugin/dist/CssModule',
     null,
     {
       serialize(instance, context) {