diff --git a/package.json b/package.json
index 4cd41117339e..d0062ae63c0e 100644
--- a/package.json
+++ b/package.json
@@ -124,7 +124,7 @@
     "magic-string": "0.30.17",
     "marked": "^16.0.0",
     "minimatch": "^10.0.3",
-    "parse5": "^7.1.2",
+    "parse5": "^8.0.0",
     "postcss": "^8.4.17",
     "postcss-scss": "^4.0.4",
     "prettier": "^3.5.3",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 03b19f59db7d..54808d6fbe62 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -276,8 +276,8 @@ importers:
         specifier: ^10.0.3
         version: 10.0.3
       parse5:
-        specifier: ^7.1.2
-        version: 7.2.1
+        specifier: ^8.0.0
+        version: 8.0.0
       postcss:
         specifier: ^8.4.17
         version: 8.5.3
@@ -532,8 +532,8 @@ importers:
   src/cdk:
     dependencies:
       parse5:
-        specifier: ^7.1.2
-        version: 7.2.1
+        specifier: ^8.0.0
+        version: 8.0.0
       tslib:
         specifier: ^2.3.0
         version: 2.8.1
@@ -6760,6 +6760,9 @@ packages:
   parse5@7.2.1:
     resolution: {integrity: sha512-BuBYQYlv1ckiPdQi/ohiivi9Sagc9JG+Ozs0r7b/0iK3sKmrb0b9FdWdBbOdx6hBCM/F9Ir82ofnBhtZOjCRPQ==}
 
+  parse5@8.0.0:
+    resolution: {integrity: sha512-9m4m5GSgXjL4AjumKzq1Fgfp3Z8rsvjRNbnkVwfu2ImRqE5D0LnY2QfDen18FSY9C573YU5XxSapdHZTZ2WolA==}
+
   parseurl@1.3.3:
     resolution: {integrity: sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==}
     engines: {node: '>= 0.8'}
@@ -15862,6 +15865,10 @@ snapshots:
     dependencies:
       entities: 4.5.0
 
+  parse5@8.0.0:
+    dependencies:
+      entities: 6.0.0
+
   parseurl@1.3.3: {}
 
   pascal-case@2.0.1:
diff --git a/src/cdk/package.json b/src/cdk/package.json
index 0cb0dc83ae09..5923d56a28b0 100644
--- a/src/cdk/package.json
+++ b/src/cdk/package.json
@@ -50,7 +50,7 @@
     "rxjs": "^6.5.3 || ^7.4.0"
   },
   "dependencies": {
-    "parse5": "^7.1.2",
+    "parse5": "^8.0.0",
     "tslib": "^2.3.0"
   },
   "schematics": "./schematics/collection.json",