diff --git a/packages/crates-io-msw/package.json b/packages/crates-io-msw/package.json
index 7cd1f3beace..a4f36ab16ef 100644
--- a/packages/crates-io-msw/package.json
+++ b/packages/crates-io-msw/package.json
@@ -23,7 +23,7 @@
     "semver": "7.7.1"
   },
   "devDependencies": {
-    "happy-dom": "17.1.8",
+    "happy-dom": "17.1.9",
     "vitest": "3.0.7"
   }
 }
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 47b06477f60..0a7b0fe69f4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -333,11 +333,11 @@ importers:
         version: 7.7.1
     devDependencies:
       happy-dom:
-        specifier: 17.1.8
-        version: 17.1.8
+        specifier: 17.1.9
+        version: 17.1.9
       vitest:
         specifier: 3.0.7
-        version: 3.0.7(@types/node@22.13.9)(happy-dom@17.1.8)(jsdom@25.0.1)(msw@2.7.3(@types/node@22.13.9)(typescript@5.8.2))(terser@5.39.0)(yaml@2.7.0)
+        version: 3.0.7(@types/node@22.13.9)(happy-dom@17.1.9)(jsdom@25.0.1)(msw@2.7.3(@types/node@22.13.9)(typescript@5.8.2))(terser@5.39.0)(yaml@2.7.0)
 
 packages:
 
@@ -5380,8 +5380,8 @@ packages:
     engines: {node: '>=0.4.7'}
     hasBin: true
 
-  happy-dom@17.1.8:
-    resolution: {integrity: sha512-Yxbq/FG79z1rhAf/iB6YM8wO2JB/JDQBy99RiLSs+2siEAi5J05x9eW1nnASHZJbpldjJE2KuFLsLZ+AzX/IxA==}
+  happy-dom@17.1.9:
+    resolution: {integrity: sha512-HL26ajjMVe/wr3xlzjF0sCPCiAKaZJcIRFZHmG4yKHRJp4YAkHPG5X6GfWxCeDTpOmuHhNiOyNKUoZjjnm0tjw==}
     engines: {node: '>=18.0.0'}
 
   has-ansi@3.0.0:
@@ -15635,7 +15635,7 @@ snapshots:
     optionalDependencies:
       uglify-js: 3.19.3
 
-  happy-dom@17.1.8:
+  happy-dom@17.1.9:
     dependencies:
       webidl-conversions: 7.0.0
       whatwg-mimetype: 3.0.0
@@ -19100,7 +19100,7 @@ snapshots:
       terser: 5.39.0
       yaml: 2.7.0
 
-  vitest@3.0.7(@types/node@22.13.9)(happy-dom@17.1.8)(jsdom@25.0.1)(msw@2.7.3(@types/node@22.13.9)(typescript@5.8.2))(terser@5.39.0)(yaml@2.7.0):
+  vitest@3.0.7(@types/node@22.13.9)(happy-dom@17.1.9)(jsdom@25.0.1)(msw@2.7.3(@types/node@22.13.9)(typescript@5.8.2))(terser@5.39.0)(yaml@2.7.0):
     dependencies:
       '@vitest/expect': 3.0.7
       '@vitest/mocker': 3.0.7(msw@2.7.3(@types/node@22.13.9)(typescript@5.8.2))(vite@6.2.0(@types/node@22.13.9)(terser@5.39.0)(yaml@2.7.0))
@@ -19124,7 +19124,7 @@ snapshots:
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@types/node': 22.13.9
-      happy-dom: 17.1.8
+      happy-dom: 17.1.9
       jsdom: 25.0.1(supports-color@8.1.1)
     transitivePeerDependencies:
       - jiti