diff --git a/package.json b/package.json
index 3cec5fc9d..ce8b2eaf0 100644
--- a/package.json
+++ b/package.json
@@ -65,7 +65,7 @@
     "cypress": "^13.16.1",
     "cz-conventional-changelog": "3.3.0",
     "eslint": "^9.16.0",
-    "postcss-custom-properties": "^13.3.12",
+    "postcss-custom-properties": "^14.0.4",
     "postcss-html": "^1.7.0",
     "rollup-plugin-visualizer": "^5.12.0",
     "sass": "^1.82.0",
diff --git a/yarn.lock b/yarn.lock
index a67ecb5d0..e22a6a8ca 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -596,26 +596,16 @@
   dependencies:
     "@jridgewell/trace-mapping" "0.3.9"
 
-"@csstools/cascade-layer-name-parser@^1.0.13":
-  version "1.0.13"
-  resolved "https://registry.yarnpkg.com/@csstools/cascade-layer-name-parser/-/cascade-layer-name-parser-1.0.13.tgz#6900157489bc53da1f6a66eaccd432025f6cd6fb"
-  integrity sha512-MX0yLTwtZzr82sQ0zOjqimpZbzjMaK/h2pmlrLK7DCzlmiZLYFpoO94WmN1akRVo6ll/TdpHb53vihHLUMyvng==
-
-"@csstools/css-parser-algorithms@^2.7.1":
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/@csstools/css-parser-algorithms/-/css-parser-algorithms-2.7.1.tgz#6d93a8f7d8aeb7cd9ed0868f946e46f021b6aa70"
-  integrity sha512-2SJS42gxmACHgikc1WGesXLIT8d/q2l0UFM7TaEeIzdFCE/FPMtTiizcPGGJtlPo2xuQzY09OhrLTzRxqJqwGw==
+"@csstools/cascade-layer-name-parser@^2.0.4":
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/@csstools/cascade-layer-name-parser/-/cascade-layer-name-parser-2.0.4.tgz#64d128529397aa1e1c986f685713363b262b81b1"
+  integrity sha512-7DFHlPuIxviKYZrOiwVU/PiHLm3lLUR23OMuEEtfEOQTOp9hzQ2JjdY6X5H18RVuUPJqSCI+qNnD5iOLMVE0bA==
 
 "@csstools/css-parser-algorithms@^3.0.4":
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/@csstools/css-parser-algorithms/-/css-parser-algorithms-3.0.4.tgz#74426e93bd1c4dcab3e441f5cc7ba4fb35d94356"
   integrity sha512-Up7rBoV77rv29d3uKHUIVubz1BTcgyUK72IvCQAbfbMv584xHcGKCKbWh7i8hPrRJ7qU4Y8IO3IY9m+iTB7P3A==
 
-"@csstools/css-tokenizer@^2.4.1":
-  version "2.4.1"
-  resolved "https://registry.yarnpkg.com/@csstools/css-tokenizer/-/css-tokenizer-2.4.1.tgz#1d8b2e200197cf5f35ceb07ca2dade31f3a00ae8"
-  integrity sha512-eQ9DIktFJBhGjioABJRtUucoWR2mwllurfnM8LuNGAqX3ViZXaUchqk+1s7jjtkFiT9ySdACsFEA3etErkALUg==
-
 "@csstools/css-tokenizer@^3.0.3":
   version "3.0.3"
   resolved "https://registry.yarnpkg.com/@csstools/css-tokenizer/-/css-tokenizer-3.0.3.tgz#a5502c8539265fecbd873c1e395a890339f119c2"
@@ -631,10 +621,10 @@
   resolved "https://registry.yarnpkg.com/@csstools/selector-specificity/-/selector-specificity-5.0.0.tgz#037817b574262134cabd68fc4ec1a454f168407b"
   integrity sha512-PCqQV3c4CoVm3kdPhyeZ07VmBRdH2EpMFA/pd9OASpOEC3aXNGoqPDAZ80D0cLpMBxnmk0+yNhGsEx31hq7Gtw==
 
-"@csstools/utilities@^1.0.0":
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/@csstools/utilities/-/utilities-1.0.0.tgz#42f3c213f2fb929324d465684ab9f46a0febd4bb"
-  integrity sha512-tAgvZQe/t2mlvpNosA4+CkMiZ2azISW5WPAcdSalZlEjQvUfghHxfQcrCiK/7/CrfAWVxyM88kGFYO82heIGDg==
+"@csstools/utilities@^2.0.0":
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/@csstools/utilities/-/utilities-2.0.0.tgz#f7ff0fee38c9ffb5646d47b6906e0bc8868bde60"
+  integrity sha512-5VdOr0Z71u+Yp3ozOx8T11N703wIFGVRgOWbOZMKgglPJsWA54MRIoMNVMa7shUToIhx5J8vX4sOZgD2XiihiQ==
 
 "@cypress/request@^3.0.6":
   version "3.0.7"
@@ -6573,15 +6563,15 @@ pkg-conf@^2.1.0:
     find-up "^2.0.0"
     load-json-file "^4.0.0"
 
-postcss-custom-properties@^13.3.12:
-  version "13.3.12"
-  resolved "https://registry.yarnpkg.com/postcss-custom-properties/-/postcss-custom-properties-13.3.12.tgz#e21960c7d13aed960b28236412d4da67f75317b0"
-  integrity sha512-oPn/OVqONB2ZLNqN185LDyaVByELAA/u3l2CS2TS16x2j2XsmV4kd8U49+TMxmUsEU9d8fB/I10E6U7kB0L1BA==
+postcss-custom-properties@^14.0.4:
+  version "14.0.4"
+  resolved "https://registry.yarnpkg.com/postcss-custom-properties/-/postcss-custom-properties-14.0.4.tgz#de9c663285a98833a946d7003a34369d3ce373a9"
+  integrity sha512-QnW8FCCK6q+4ierwjnmXF9Y9KF8q0JkbgVfvQEMa93x1GT8FvOiUevWCN2YLaOWyByeDX8S6VFbZEeWoAoXs2A==
   dependencies:
-    "@csstools/cascade-layer-name-parser" "^1.0.13"
-    "@csstools/css-parser-algorithms" "^2.7.1"
-    "@csstools/css-tokenizer" "^2.4.1"
-    "@csstools/utilities" "^1.0.0"
+    "@csstools/cascade-layer-name-parser" "^2.0.4"
+    "@csstools/css-parser-algorithms" "^3.0.4"
+    "@csstools/css-tokenizer" "^3.0.3"
+    "@csstools/utilities" "^2.0.0"
     postcss-value-parser "^4.2.0"
 
 postcss-html@^1.7.0: