diff --git a/package-lock.json b/package-lock.json
index 0e24197b2..5f142ead3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -65,7 +65,7 @@
         "webpack-bundle-analyzer": "4.10.1",
         "webpack-cli": "5.1.4",
         "webpack-dev-server": "4.15.1",
-        "webpack-merge": "5.9.0"
+        "webpack-merge": "5.10.0"
       },
       "bin": {
         "fedx-scripts": "bin/fedx-scripts.js"
@@ -7612,6 +7612,14 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/flat": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-5.0.2.tgz",
+      "integrity": "sha512-b6suED+5/3rTpUBdG1gupIl8MPFCAMA0QXwmljLhvCUKcUvdE4gWky9zpuGCcXHOsz4J9wPGNWq6OKpmIzz3hQ==",
+      "bin": {
+        "flat": "cli.js"
+      }
+    },
     "node_modules/flat-cache": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/flat-cache/-/flat-cache-3.1.0.tgz",
@@ -15748,11 +15756,12 @@
       }
     },
     "node_modules/webpack-merge": {
-      "version": "5.9.0",
-      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.9.0.tgz",
-      "integrity": "sha512-6NbRQw4+Sy50vYNTw7EyOn41OZItPiXB8GNv3INSoe3PSFaHJEz3SHTrYVaRm2LilNGnFUzh0FAwqPEmU/CwDg==",
+      "version": "5.10.0",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-5.10.0.tgz",
+      "integrity": "sha512-+4zXKdx7UnO+1jaN4l2lHVD+mFvnlZQP/6ljaJVb4SZiwIKeUnrT5l0gkT8z+n4hKpC+jpOv6O9R+gLtag7pSA==",
       "dependencies": {
         "clone-deep": "^4.0.1",
+        "flat": "^5.0.2",
         "wildcard": "^2.0.0"
       },
       "engines": {
diff --git a/package.json b/package.json
index 1c46fde8d..8c572ff24 100644
--- a/package.json
+++ b/package.json
@@ -81,7 +81,7 @@
     "webpack-bundle-analyzer": "4.10.1",
     "webpack-cli": "5.1.4",
     "webpack-dev-server": "4.15.1",
-    "webpack-merge": "5.9.0"
+    "webpack-merge": "5.10.0"
   },
   "devDependencies": {
     "@babel/preset-typescript": "^7.18.6",