diff --git a/packages/@lwc/engine-server/package.json b/packages/@lwc/engine-server/package.json
index 05c2cc9c38..18be46e60a 100644
--- a/packages/@lwc/engine-server/package.json
+++ b/packages/@lwc/engine-server/package.json
@@ -52,6 +52,6 @@
         "@lwc/features": "8.20.1",
         "@lwc/signals": "8.20.1",
         "@rollup/plugin-virtual": "^3.0.2",
-        "parse5": "^7.3.0"
+        "parse5": "^8.0.0"
     }
 }
diff --git a/packages/@lwc/template-compiler/package.json b/packages/@lwc/template-compiler/package.json
index 3d94ef803b..c141a3a805 100644
--- a/packages/@lwc/template-compiler/package.json
+++ b/packages/@lwc/template-compiler/package.json
@@ -57,6 +57,6 @@
         "@types/estree": "^1.0.8",
         "@types/he": "^1.2.3",
         "estree-walker": "~3.0.3",
-        "parse5": "^7.3.0"
+        "parse5": "^8.0.0"
     }
 }
diff --git a/yarn.lock b/yarn.lock
index 27e3d45170..83c912b108 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11489,20 +11489,20 @@ parse5@^6.0.1:
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-6.0.1.tgz#e1a1c085c569b3dc08321184f19a39cc27f7c30b"
   integrity sha512-Ofn/CTFzRGTTxwpNEs9PP93gXShHcTq255nzRYSKe8AkVpZY7e1fpmTfOyoIvjP5HG7Z2ZM7VS9PPhQGW2pOpw==
 
-parse5@^7.0.0, parse5@^7.1.2, parse5@^7.2.1:
-  version "7.2.1"
-  resolved "https://registry.yarnpkg.com/parse5/-/parse5-7.2.1.tgz#8928f55915e6125f430cc44309765bf17556a33a"
-  integrity sha512-BuBYQYlv1ckiPdQi/ohiivi9Sagc9JG+Ozs0r7b/0iK3sKmrb0b9FdWdBbOdx6hBCM/F9Ir82ofnBhtZOjCRPQ==
-  dependencies:
-    entities "^4.5.0"
-
-parse5@^7.3.0:
+parse5@^7.0.0, parse5@^7.1.2, parse5@^7.2.1, parse5@^7.3.0:
   version "7.3.0"
   resolved "https://registry.yarnpkg.com/parse5/-/parse5-7.3.0.tgz#d7e224fa72399c7a175099f45fc2ad024b05ec05"
   integrity sha512-IInvU7fabl34qmi9gY8XOVxhYyMyuH2xUNpb2q8/Y+7552KlejkRvqvD19nMoUW/uQGGbqNpA6Tufu5FL5BZgw==
   dependencies:
     entities "^6.0.0"
 
+parse5@^8.0.0:
+  version "8.0.0"
+  resolved "https://registry.yarnpkg.com/parse5/-/parse5-8.0.0.tgz#aceb267f6b15f9b6e6ba9e35bfdd481fc2167b12"
+  integrity sha512-9m4m5GSgXjL4AjumKzq1Fgfp3Z8rsvjRNbnkVwfu2ImRqE5D0LnY2QfDen18FSY9C573YU5XxSapdHZTZ2WolA==
+  dependencies:
+    entities "^6.0.0"
+
 parseurl@^1.3.2, parseurl@^1.3.3, parseurl@~1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"