diff --git a/packages/component/.size-snapshot.json b/packages/component/.size-snapshot.json
index 7a595a14..dd155c0d 100644
--- a/packages/component/.size-snapshot.json
+++ b/packages/component/.size-snapshot.json
@@ -1,20 +1,20 @@
 {
   "dist/loadable.cjs.js": {
-    "bundled": 14563,
-    "minified": 7172,
-    "gzipped": 2534
+    "bundled": 16387,
+    "minified": 7324,
+    "gzipped": 2574
   },
   "dist/loadable.esm.js": {
-    "bundled": 14184,
-    "minified": 6868,
-    "gzipped": 2467,
+    "bundled": 16008,
+    "minified": 7020,
+    "gzipped": 2506,
     "treeshaked": {
       "rollup": {
         "code": 276,
         "import_statements": 276
       },
       "webpack": {
-        "code": 5744
+        "code": 5896
       }
     }
   }
diff --git a/packages/server/src/ChunkExtractor.js b/packages/server/src/ChunkExtractor.js
index 64aa6b0b..04110c21 100644
--- a/packages/server/src/ChunkExtractor.js
+++ b/packages/server/src/ChunkExtractor.js
@@ -201,17 +201,20 @@ class ChunkExtractor {
   }
 
   createChunkAsset({ filename, chunk, type, linkType }) {
+    const resolvedFilename =
+      typeof filename === 'object' && filename.name ? filename.name : filename
+
     return {
-      filename,
+      filename: resolvedFilename,
       scriptType: extensionToScriptType(
         path
-          .extname(filename)
+          .extname(resolvedFilename)
           .split('?')[0]
           .toLowerCase(),
       ),
       chunk,
-      url: this.resolvePublicUrl(filename),
-      path: path.join(this.outputPath, filename),
+      url: this.resolvePublicUrl(resolvedFilename),
+      path: path.join(this.outputPath, resolvedFilename),
       type,
       linkType,
     }
diff --git a/packages/webpack-plugin/src/index.js b/packages/webpack-plugin/src/index.js
index 1a3d8445..e1bca431 100644
--- a/packages/webpack-plugin/src/index.js
+++ b/packages/webpack-plugin/src/index.js
@@ -72,8 +72,14 @@ class LoadablePlugin {
   apply(compiler) {
     this.compiler = compiler
 
-    // Add a custom output.jsonpFunction: __LOADABLE_LOADED_CHUNKS__
-    compiler.options.output.jsonpFunction = '__LOADABLE_LOADED_CHUNKS__'
+    // Check if webpack version 4 or 5
+    if ('jsonpFunction' in compiler.options.output) {
+      // Add a custom output.jsonpFunction: __LOADABLE_LOADED_CHUNKS__
+      compiler.options.output.jsonpFunction = '__LOADABLE_LOADED_CHUNKS__'
+    } else {
+      // Add a custom output.chunkLoadingGlobal: __LOADABLE_LOADED_CHUNKS__
+      compiler.options.output.chunkLoadingGlobal = '__LOADABLE_LOADED_CHUNKS__'
+    }
 
     if (this.opts.outputAsset || this.opts.writeToDisk) {
       compiler.hooks.emit.tapAsync('@loadable/webpack-plugin', this.handleEmit)
diff --git a/yarn.lock b/yarn.lock
index d32ba8b7..3b378e27 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -185,11 +185,6 @@
   resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.0.0.tgz#bbb3fbee98661c569034237cc03967ba99b4f250"
   integrity sha512-CYAOUCARwExnEixLdB6sDm2dIJ/YgEAKDM1MOeMeZu9Ld/bDgVo8aiWrXwcY7OBh+1Ea2uUcVRcxKk0GJvW7QA==
 
-"@babel/helper-plugin-utils@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.8.3.tgz#9ea293be19babc0f52ff8ca88b34c3611b208670"
-  integrity sha512-j+fq49Xds2smCUNYmEHF9kGNkhbet6yVIBp4e6oeQpH1RUs/Ir06xUKzDjDkGcaaokPiTNs2JBWHjaE4csUkZQ==
-
 "@babel/helper-regex@^7.0.0", "@babel/helper-regex@^7.4.4":
   version "7.5.5"
   resolved "https://registry.yarnpkg.com/@babel/helper-regex/-/helper-regex-7.5.5.tgz#0aa6824f7100a2e0e89c1527c23936c152cab351"
@@ -305,14 +300,6 @@
     "@babel/helper-plugin-utils" "^7.0.0"
     "@babel/plugin-syntax-dynamic-import" "^7.7.4"
 
-"@babel/plugin-proposal-function-bind@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-function-bind/-/plugin-proposal-function-bind-7.8.3.tgz#e34a1e984771b84b6e5322745edeadca7e500ced"
-  integrity sha512-6q7VAHJQa9x4P6Lm6h6KHoJUEhx2r1buFKseHICe0ogb1LWxducO4tsQp3hd/7BVBo485YBsn6tJnpuwWm/9cA==
-  dependencies:
-    "@babel/helper-plugin-utils" "^7.8.3"
-    "@babel/plugin-syntax-function-bind" "^7.8.3"
-
 "@babel/plugin-proposal-json-strings@^7.7.4":
   version "7.7.4"
   resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-json-strings/-/plugin-proposal-json-strings-7.7.4.tgz#7700a6bfda771d8dc81973249eac416c6b4c697d"
@@ -366,13 +353,6 @@
   dependencies:
     "@babel/helper-plugin-utils" "^7.0.0"
 
-"@babel/plugin-syntax-function-bind@^7.8.3":
-  version "7.8.3"
-  resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-function-bind/-/plugin-syntax-function-bind-7.8.3.tgz#17d722cd8efc9bb9cf8bc59327f2b26295b352f7"
-  integrity sha512-gEYag4Q3CfqlQcJQQw/KSWdV2husGOnIsOsRlyzkoaNqj2V/V/CSdSJDCGSl67oJ1bdIYP6TjORWPH561dSJpA==
-  dependencies:
-    "@babel/helper-plugin-utils" "^7.8.3"
-
 "@babel/plugin-syntax-json-strings@^7.7.4":
   version "7.7.4"
   resolved "https://registry.yarnpkg.com/@babel/plugin-syntax-json-strings/-/plugin-syntax-json-strings-7.7.4.tgz#86e63f7d2e22f9e27129ac4e83ea989a382e86cc"