diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index 601903e675..8dd6eac59b 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -69,7 +69,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macos-latest]
-        node-version: [20.x, 22.x, 24.x, 25.x]
+        node-version: [22.x, 24.x, 25.x]
         shard: ["1/4", "2/4", "3/4", "4/4"]
         webpack-version: [latest]
 
diff --git a/client-src/webpack.config.js b/client-src/webpack.config.js
index 7037f9406f..d3d68fddb0 100644
--- a/client-src/webpack.config.js
+++ b/client-src/webpack.config.js
@@ -27,6 +27,8 @@ const baseForModules = {
     rules: [
       {
         test: /\.js$/,
+        include: path.join(__dirname, "modules"),
+        type: "javascript/esm",
         use: [
           {
             loader: "babel-loader",
@@ -47,6 +49,8 @@ module.exports = [
       rules: [
         {
           test: /\.js$/,
+          include: path.join(__dirname, "modules"),
+          type: "javascript/esm",
           use: [
             {
               loader: "babel-loader",
diff --git a/package-lock.json b/package-lock.json
index 4647869111..3c97ab731a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "connect-history-api-fallback": "^2.0.0",
         "express": "^5.2.1",
         "graceful-fs": "^4.2.11",
-        "http-proxy-middleware": "^3.0.5",
+        "http-proxy-middleware": "^4.0.0-beta.5",
         "ipaddr.js": "^2.3.0",
         "launch-editor": "^2.13.2",
         "open": "^11.0.0",
@@ -101,7 +101,7 @@
         "webpack-merge": "^6.0.1"
       },
       "engines": {
-        "node": ">= 20.9.0"
+        "node": ">= 22.12.0"
       },
       "funding": {
         "type": "opencollective",
@@ -5222,15 +5222,6 @@
       "integrity": "sha512-r8Tayk8HJnX0FztbZN7oVqGccWgw98T/0neJphO91KkmOzug1KkofZURD4UaD5uH8AqcFLfdPErnBod0u71/qg==",
       "license": "MIT"
     },
-    "node_modules/@types/http-proxy": {
-      "version": "1.17.16",
-      "resolved": "https://registry.npmjs.org/@types/http-proxy/-/http-proxy-1.17.16.tgz",
-      "integrity": "sha512-sdWoUajOB1cd0A8cRRQ1cfyWNbmFKLAqBB89Y8x5iYyG/mkJHc0YUH8pdWBy2omi9qtCpiIgGjuwO0dQST2l5w==",
-      "license": "MIT",
-      "dependencies": {
-        "@types/node": "*"
-      }
-    },
     "node_modules/@types/istanbul-lib-coverage": {
       "version": "2.0.6",
       "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.6.tgz",
@@ -11663,6 +11654,7 @@
       "version": "4.0.7",
       "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz",
       "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/events": {
@@ -12190,6 +12182,7 @@
       "version": "1.15.11",
       "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.15.11.tgz",
       "integrity": "sha512-deG2P0JfjrTxl50XGCDyfI97ZGVCxIpfKYmfyrQ54n5FO/0gfIES8C/Psl6kWVDolizcaaxZJnTS0QSMxvnsBQ==",
+      "dev": true,
       "funding": [
         {
           "type": "individual",
@@ -13577,6 +13570,7 @@
       "version": "1.18.1",
       "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz",
       "integrity": "sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==",
+      "dev": true,
       "license": "MIT",
       "dependencies": {
         "eventemitter3": "^4.0.0",
@@ -13603,29 +13597,19 @@
       }
     },
     "node_modules/http-proxy-middleware": {
-      "version": "3.0.5",
-      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-3.0.5.tgz",
-      "integrity": "sha512-GLZZm1X38BPY4lkXA01jhwxvDoOkkXqjgVyUzVxiEK4iuRu03PZoYHhHRwxnfhQMDuaxi3vVri0YgSro/1oWqg==",
+      "version": "4.0.0-beta.5",
+      "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-4.0.0-beta.5.tgz",
+      "integrity": "sha512-MfX/V4s3KClxqrkNlNifS9xCgfsFZ051pzCbmHkC/8QIigCXCtTv2W8jgsbIxnmWl8gP3bszZdAuDQe9yuPHOQ==",
       "license": "MIT",
       "dependencies": {
-        "@types/http-proxy": "^1.17.15",
-        "debug": "^4.3.6",
-        "http-proxy": "^1.18.1",
+        "debug": "^4.4.3",
+        "httpxy": "^0.5.1",
         "is-glob": "^4.0.3",
-        "is-plain-object": "^5.0.0",
+        "is-plain-obj": "^4.1.0",
         "micromatch": "^4.0.8"
       },
       "engines": {
-        "node": "^14.15.0 || ^16.10.0 || >=18.0.0"
-      }
-    },
-    "node_modules/http-proxy-middleware/node_modules/is-plain-object": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz",
-      "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
+        "node": "^22.12.0 || >=24.0.0"
       }
     },
     "node_modules/https-proxy-agent": {
@@ -13642,6 +13626,12 @@
         "node": ">= 6"
       }
     },
+    "node_modules/httpxy": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/httpxy/-/httpxy-0.5.1.tgz",
+      "integrity": "sha512-JPhqYiixe1A1I+MXDewWDZqeudBGU8Q9jCHYN8ML+779RQzLjTi78HBvWz4jMxUD6h2/vUL12g4q/mFM0OUw1A==",
+      "license": "MIT"
+    },
     "node_modules/human-signals": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz",
@@ -14297,6 +14287,18 @@
         "node": ">=8"
       }
     },
+    "node_modules/is-plain-obj": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/is-plain-obj/-/is-plain-obj-4.1.0.tgz",
+      "integrity": "sha512-+Pgi+vMuUNkJyExiMBt5IlFoMyKnr5zhJ4Uspz58WOhBF5QoIZkFyNHIbBAtHwzVAgk5RtndVNsDRN61/mmDqg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
     "node_modules/is-plain-object": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-2.0.4.tgz",
@@ -20559,6 +20561,7 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz",
       "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==",
+      "dev": true,
       "license": "MIT"
     },
     "node_modules/resolve": {
@@ -21350,19 +21353,6 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
-    "node_modules/sort-package-json/node_modules/is-plain-obj": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/is-plain-obj/-/is-plain-obj-4.1.0.tgz",
-      "integrity": "sha512-+Pgi+vMuUNkJyExiMBt5IlFoMyKnr5zhJ4Uspz58WOhBF5QoIZkFyNHIbBAtHwzVAgk5RtndVNsDRN61/mmDqg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/sort-package-json/node_modules/semver": {
       "version": "7.7.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
diff --git a/package.json b/package.json
index 521f2e716f..c361096ef5 100644
--- a/package.json
+++ b/package.json
@@ -9,6 +9,7 @@
     "type": "opencollective",
     "url": "https://opencollective.com/webpack"
   },
+  "type": "commonjs",
   "license": "MIT",
   "author": "Tobias Koppers @sokra",
   "main": "lib/Server.js",
@@ -58,7 +59,7 @@
     "connect-history-api-fallback": "^2.0.0",
     "express": "^5.2.1",
     "graceful-fs": "^4.2.11",
-    "http-proxy-middleware": "^3.0.5",
+    "http-proxy-middleware": "^4.0.0-beta.5",
     "ipaddr.js": "^2.3.0",
     "launch-editor": "^2.13.2",
     "open": "^11.0.0",
@@ -144,6 +145,6 @@
     }
   },
   "engines": {
-    "node": ">= 20.9.0"
+    "node": ">= 22.12.0"
   }
 }