diff --git a/package.json b/package.json
index c254cacc..d2799a41 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,7 @@
 	"packageManager": "yarn@3.4.1",
 	"dependencies": {
 		"@sveltejs/adapter-node": "^1.2.3",
-		"css-tree": "^2.3.1",
+		"css-tree": "^3.2.1",
 		"perfectionist-dfd": "^3.0.1",
 		"postcss": "^8.4.21",
 		"postcss-discard-empty": "^6.0.0",
diff --git a/yarn.lock b/yarn.lock
index 342ae313..241a00d6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1152,13 +1152,13 @@ __metadata:
   languageName: node
   linkType: hard
 
-"css-tree@npm:^2.3.1":
-  version: 2.3.1
-  resolution: "css-tree@npm:2.3.1"
+"css-tree@npm:^3.2.1":
+  version: 3.2.1
+  resolution: "css-tree@npm:3.2.1"
   dependencies:
-    mdn-data: 2.0.30
-    source-map-js: ^1.0.1
-  checksum: 493cc24b5c22b05ee5314b8a0d72d8a5869491c1458017ae5ed75aeb6c3596637dbe1b11dac2548974624adec9f7a1f3a6cf40593dc1f9185eb0e8279543fbc0
+    mdn-data: 2.27.1
+    source-map-js: ^1.2.1
+  checksum: f4482b1c0a1b5422e06f96cb76c8bb69156d13c4e68dfca5b67de0d831943d702de8200475f11b29f3819c5dc7bfc10dea8ffe5e4e0985d690fa6e39a0b4f7ae
   languageName: node
   linkType: hard
 
@@ -2536,10 +2536,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"mdn-data@npm:2.0.30":
-  version: 2.0.30
-  resolution: "mdn-data@npm:2.0.30"
-  checksum: d6ac5ac7439a1607df44b22738ecf83f48e66a0874e4482d6424a61c52da5cde5750f1d1229b6f5fa1b80a492be89465390da685b11f97d62b8adcc6e88189aa
+"mdn-data@npm:2.27.1":
+  version: 2.27.1
+  resolution: "mdn-data@npm:2.27.1"
+  checksum: a19a8d524b774089731f2ebaaf17aa110d8031fd4f313c23692b3636e117042d760098a9e8091035933b26c9252c4355008f56f5383f986b6df9c54f3fed8ebc
   languageName: node
   linkType: hard
 
@@ -3533,13 +3533,20 @@ __metadata:
   languageName: node
   linkType: hard
 
-"source-map-js@npm:>=0.6.2 <2.0.0, source-map-js@npm:^1.0.1, source-map-js@npm:^1.0.2":
+"source-map-js@npm:>=0.6.2 <2.0.0, source-map-js@npm:^1.0.2":
   version: 1.0.2
   resolution: "source-map-js@npm:1.0.2"
   checksum: c049a7fc4deb9a7e9b481ae3d424cc793cb4845daa690bc5a05d428bf41bf231ced49b4cf0c9e77f9d42fdb3d20d6187619fc586605f5eabe995a316da8d377c
   languageName: node
   linkType: hard
 
+"source-map-js@npm:^1.2.1":
+  version: 1.2.1
+  resolution: "source-map-js@npm:1.2.1"
+  checksum: 4eb0cd997cdf228bc253bcaff9340afeb706176e64868ecd20efbe6efea931465f43955612346d6b7318789e5265bdc419bc7669c1cebe3db0eb255f57efa76b
+  languageName: node
+  linkType: hard
+
 "source-map@npm:^0.6.1":
   version: 0.6.1
   resolution: "source-map@npm:0.6.1"
@@ -3810,7 +3817,7 @@ __metadata:
     "@types/prettier": ^2.7.2
     "@typescript-eslint/eslint-plugin": ^5.45.0
     "@typescript-eslint/parser": ^5.45.0
-    css-tree: ^2.3.1
+    css-tree: ^3.2.1
     eslint: ^8.28.0
     eslint-plugin-svelte3: ^4.0.0
     perfectionist-dfd: ^3.0.1