diff --git a/templates/package-lock.json b/templates/package-lock.json
index 888271127a7..b5a40477889 100644
--- a/templates/package-lock.json
+++ b/templates/package-lock.json
@@ -3290,6 +3290,13 @@
         "stream-throttle": "^0.1.3"
       }
     },
+    "node_modules/browser-sync-ui/node_modules/immutable": {
+      "version": "4.3.9",
+      "resolved": "https://ms-feed-12.pkgs.visualstudio.com/1es-public/_packaging/npm-public/npm/registry/immutable/-/immutable-4.3.9.tgz",
+      "integrity": "sha1-yYNJ4F6cbipNj+iKwLNj4NU2tUQ=",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/browser-sync/node_modules/cliui": {
       "version": "8.0.1",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-8.0.1.tgz",
@@ -3305,6 +3312,13 @@
         "node": ">=12"
       }
     },
+    "node_modules/browser-sync/node_modules/immutable": {
+      "version": "4.3.9",
+      "resolved": "https://ms-feed-12.pkgs.visualstudio.com/1es-public/_packaging/npm-public/npm/registry/immutable/-/immutable-4.3.9.tgz",
+      "integrity": "sha1-yYNJ4F6cbipNj+iKwLNj4NU2tUQ=",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/browser-sync/node_modules/wrap-ansi": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
@@ -6199,16 +6213,6 @@
         "node": ">= 4"
       }
     },
-    "node_modules/immutable": {
-      "version": "3.8.2",
-      "resolved": "https://registry.npmjs.org/immutable/-/immutable-3.8.2.tgz",
-      "integrity": "sha512-15gZoQ38eYjEjxkorfbcgBKBL6R7T459OuK+CpcWt7O3KF4uPCx2tD0uFETlUDIyo+1789crbMhTvQBSR5yBMg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
     "node_modules/import-fresh": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/import-fresh/-/import-fresh-3.3.1.tgz",
diff --git a/templates/package.json b/templates/package.json
index 45633626561..9d96ec5af74 100644
--- a/templates/package.json
+++ b/templates/package.json
@@ -18,6 +18,14 @@
     "test": "node --import tsx --test modern/src/*.test.ts",
     "start": "node build.js --watch"
   },
+  "overrides": {
+    "browser-sync": {
+      "immutable": "4.3.9"
+    },
+    "browser-sync-ui": {
+      "immutable": "4.3.9"
+    }
+  },
   "dependencies": {
     "@default/anchor-js": "npm:anchor-js@5.0.0",
     "@default/bootstrap": "npm:bootstrap@3.4.1",