diff --git a/package.json b/package.json
index f98ee473..b83509db 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "jest": "^29.7.0",
     "jest-environment-jsdom": "^30.2.0",
     "jest-expect-message": "^1.1.3",
-    "jsdom": "^27.2.0",
+    "jsdom": "^27.3.0",
     "mutationobserver-shim": "^0.3.7",
     "postcss": "^8.5.6",
     "release-plan": "^0.17.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 3f77786b..ac2b61c4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -57,8 +57,8 @@ importers:
         specifier: ^1.1.3
         version: 1.1.3
       jsdom:
-        specifier: ^27.2.0
-        version: 27.2.0
+        specifier: ^27.3.0
+        version: 27.3.0(postcss@8.5.6)
       mutationobserver-shim:
         specifier: ^0.3.7
         version: 0.3.7
@@ -107,8 +107,8 @@ importers:
 
 packages:
 
-  '@acemir/cssom@0.9.26':
-    resolution: {integrity: sha512-UMFbL3EnWH/eTvl21dz9s7Td4wYDMtxz/56zD8sL9IZGYyi48RxmdgPMiyT7R6Vn3rjMTwYZ42bqKa7ex74GEQ==}
+  '@acemir/cssom@0.9.29':
+    resolution: {integrity: sha512-G90x0VW+9nW4dFajtjCoT+NM0scAfH9Mb08IcjgFHYbfiL/lU04dTF9JuVOi3/OH+DJCQdcIseSXkdCB9Ky6JA==}
 
   '@adobe/css-tools@4.4.4':
     resolution: {integrity: sha512-Elp+iwUx5rN5+Y8xLt5/GRoG20WGoDCQ/1Fb+1LiGtvwbDavuSk0jhD/eZdckHAuzcDzccnkv+rEjyWfRx18gg==}
@@ -119,8 +119,8 @@ packages:
   '@asamuzakjp/css-color@4.1.0':
     resolution: {integrity: sha512-9xiBAtLn4aNsa4mDnpovJvBn72tNEIACyvlqaNJ+ADemR+yeMJWnBudOi2qGDviJa7SwcDOU/TRh5dnET7qk0w==}
 
-  '@asamuzakjp/dom-selector@6.7.5':
-    resolution: {integrity: sha512-Eks6dY8zau4m4wNRQjRVaKQRTalNcPcBvU1ZQ35w5kKRk1gUeNCkVLsRiATurjASTp3TKM4H10wsI50nx3NZdw==}
+  '@asamuzakjp/dom-selector@6.7.6':
+    resolution: {integrity: sha512-hBaJER6A9MpdG3WgdlOolHmbOYvSk46y7IQN/1+iqiCuUu6iWdQrs9DGKF8ocqsEqWujWf/V7b7vaDgiUmIvUg==}
 
   '@asamuzakjp/nwsapi@2.3.9':
     resolution: {integrity: sha512-n8GuYSrI9bF7FFZ/SjhwevlHc8xaVlb/7HmHelnc/PZXBD2ZR49NnN9sMMuDdEGPeeRQ5d0hqlSlEpgCX3Wl0Q==}
@@ -732,9 +732,11 @@ packages:
     peerDependencies:
       '@csstools/css-tokenizer': ^3.0.4
 
-  '@csstools/css-syntax-patches-for-csstree@1.0.20':
-    resolution: {integrity: sha512-8BHsjXfSciZxjmHQOuVdW2b8WLUPts9a+mfL13/PzEviufUEW2xnvQuOlKs9dRBHgRqJ53SF/DUoK9+MZk72oQ==}
+  '@csstools/css-syntax-patches-for-csstree@1.0.14':
+    resolution: {integrity: sha512-zSlIxa20WvMojjpCSy8WrNpcZ61RqfTfX3XTaOeVlGJrt/8HF3YbzgFZa01yTbT4GWQLwfTcC3EB8i3XnB647Q==}
     engines: {node: '>=18'}
+    peerDependencies:
+      postcss: ^8.4
 
   '@csstools/css-tokenizer@3.0.4':
     resolution: {integrity: sha512-Vd/9EVDiu6PPJt9yAh6roZP6El1xHrdvIVGjyBsHR0RYwNHgL7FJPyIIW4fANJNG6FtyZfvlRPpFI4ZM/lubvw==}
@@ -2020,8 +2022,8 @@ packages:
     resolution: {integrity: sha512-2z+rWdzbbSZv6/rhtvzvqeZQHrBaqgogqt85sqFNbabZOuFbCVFb8kPeEtZjiKkbrm395irpNKiYeFeLiQnFPg==}
     engines: {node: '>=18'}
 
-  cssstyle@5.3.3:
-    resolution: {integrity: sha512-OytmFH+13/QXONJcC75QNdMtKpceNk3u8ThBjyyYjkEcy/ekBwR1mMAuNvi3gdBPW3N5TlCzQ0WZw8H0lN/bDw==}
+  cssstyle@5.3.4:
+    resolution: {integrity: sha512-KyOS/kJMEq5O9GdPnaf82noigg5X5DYn0kZPJTaAsCUaBizp6Xa1y9D4Qoqf/JazEXWuruErHgVXwjN5391ZJw==}
     engines: {node: '>=20'}
 
   cypress@15.7.1:
@@ -3221,8 +3223,8 @@ packages:
       canvas:
         optional: true
 
-  jsdom@27.2.0:
-    resolution: {integrity: sha512-454TI39PeRDW1LgpyLPyURtB4Zx1tklSr6+OFOipsxGUH1WMTvk6C65JQdrj455+DP2uJ1+veBEHTGFKWVLFoA==}
+  jsdom@27.3.0:
+    resolution: {integrity: sha512-GtldT42B8+jefDUC4yUKAvsaOrH7PDHmZxZXNgF2xMmymjUbRYJvpAybZAKEmXDGTM0mCsz8duOa4vTm5AY2Kg==}
     engines: {node: ^20.19.0 || ^22.12.0 || >=24.0.0}
     peerDependencies:
       canvas: ^3.0.0
@@ -5162,7 +5164,7 @@ packages:
 
 snapshots:
 
-  '@acemir/cssom@0.9.26': {}
+  '@acemir/cssom@0.9.29': {}
 
   '@adobe/css-tools@4.4.4': {}
 
@@ -5182,7 +5184,7 @@ snapshots:
       '@csstools/css-tokenizer': 3.0.4
       lru-cache: 11.2.4
 
-  '@asamuzakjp/dom-selector@6.7.5':
+  '@asamuzakjp/dom-selector@6.7.6':
     dependencies:
       '@asamuzakjp/nwsapi': 2.3.9
       bidi-js: 1.0.3
@@ -5946,7 +5948,9 @@ snapshots:
     dependencies:
       '@csstools/css-tokenizer': 3.0.4
 
-  '@csstools/css-syntax-patches-for-csstree@1.0.20': {}
+  '@csstools/css-syntax-patches-for-csstree@1.0.14(postcss@8.5.6)':
+    dependencies:
+      postcss: 8.5.6
 
   '@csstools/css-tokenizer@3.0.4': {}
 
@@ -7589,11 +7593,13 @@ snapshots:
       '@asamuzakjp/css-color': 3.2.0
       rrweb-cssom: 0.8.0
 
-  cssstyle@5.3.3:
+  cssstyle@5.3.4(postcss@8.5.6):
     dependencies:
       '@asamuzakjp/css-color': 4.1.0
-      '@csstools/css-syntax-patches-for-csstree': 1.0.20
+      '@csstools/css-syntax-patches-for-csstree': 1.0.14(postcss@8.5.6)
       css-tree: 3.1.0
+    transitivePeerDependencies:
+      - postcss
 
   cypress@15.7.1:
     dependencies:
@@ -9152,11 +9158,11 @@ snapshots:
       - supports-color
       - utf-8-validate
 
-  jsdom@27.2.0:
+  jsdom@27.3.0(postcss@8.5.6):
     dependencies:
-      '@acemir/cssom': 0.9.26
-      '@asamuzakjp/dom-selector': 6.7.5
-      cssstyle: 5.3.3
+      '@acemir/cssom': 0.9.29
+      '@asamuzakjp/dom-selector': 6.7.6
+      cssstyle: 5.3.4(postcss@8.5.6)
       data-urls: 6.0.0
       decimal.js: 10.6.0
       html-encoding-sniffer: 4.0.0
@@ -9176,6 +9182,7 @@ snapshots:
       xml-name-validator: 5.0.0
     transitivePeerDependencies:
       - bufferutil
+      - postcss
       - supports-color
       - utf-8-validate