diff --git a/.pnp.cjs b/.pnp.cjs
index 486cb93..70d0e0b 100755
--- a/.pnp.cjs
+++ b/.pnp.cjs
@@ -1309,7 +1309,7 @@ const RAW_RUNTIME_STATE =
         "packageDependencies": [\
           ["@example/cjs", "workspace:examples/cjs"],\
           ["@csstools/postcss-sass", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:5.1.1"],\
-          ["@types/react", "npm:18.3.10"],\
+          ["@types/react", "npm:19.0.1"],\
           ["@types/react-dom", "npm:18.3.0"],\
           ["chokidar-cli", "npm:3.0.0"],\
           ["npm-run-all", "npm:4.1.5"],\
@@ -1318,7 +1318,7 @@ const RAW_RUNTIME_STATE =
           ["postcss-scss", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:4.0.9"],\
           ["postcss-typesafe-css-modules", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#workspace:packages/postcss-typesafe-css-modules"],\
           ["prettier", "npm:3.3.3"],\
-          ["react", "npm:18.3.1"],\
+          ["react", "npm:19.0.0"],\
           ["react-dom", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:18.3.1"],\
           ["sass", "npm:1.79.4"],\
           ["typescript", "patch:typescript@npm%3A5.6.2#optional!builtin<compat/typescript>::version=5.6.2&hash=8c6c40"]\
@@ -1332,7 +1332,7 @@ const RAW_RUNTIME_STATE =
         "packageDependencies": [\
           ["@example/esm", "workspace:examples/esm"],\
           ["@csstools/postcss-sass", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:5.1.1"],\
-          ["@types/react", "npm:18.3.10"],\
+          ["@types/react", "npm:19.0.1"],\
           ["@types/react-dom", "npm:18.3.0"],\
           ["chokidar-cli", "npm:3.0.0"],\
           ["npm-run-all", "npm:4.1.5"],\
@@ -1341,7 +1341,7 @@ const RAW_RUNTIME_STATE =
           ["postcss-scss", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:4.0.9"],\
           ["postcss-typesafe-css-modules", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#workspace:packages/postcss-typesafe-css-modules"],\
           ["prettier", "npm:3.3.3"],\
-          ["react", "npm:18.3.1"],\
+          ["react", "npm:19.0.0"],\
           ["react-dom", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:18.3.1"],\
           ["sass", "npm:1.79.4"],\
           ["typescript", "patch:typescript@npm%3A5.6.2#optional!builtin<compat/typescript>::version=5.6.2&hash=8c6c40"]\
@@ -1356,7 +1356,7 @@ const RAW_RUNTIME_STATE =
           ["@example/esm-config", "workspace:examples/esm-config"],\
           ["@csstools/postcss-sass", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:5.1.1"],\
           ["@example/postcss-config-mts", "workspace:examples/postcss-config-mts"],\
-          ["@types/react", "npm:18.3.10"],\
+          ["@types/react", "npm:19.0.1"],\
           ["@types/react-dom", "npm:18.3.0"],\
           ["chokidar-cli", "npm:3.0.0"],\
           ["npm-run-all", "npm:4.1.5"],\
@@ -1365,7 +1365,7 @@ const RAW_RUNTIME_STATE =
           ["postcss-scss", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:4.0.9"],\
           ["postcss-typesafe-css-modules", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#workspace:packages/postcss-typesafe-css-modules"],\
           ["prettier", "npm:3.3.3"],\
-          ["react", "npm:18.3.1"],\
+          ["react", "npm:19.0.0"],\
           ["react-dom", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:18.3.1"],\
           ["sass", "npm:1.79.4"],\
           ["typescript", "patch:typescript@npm%3A5.6.2#optional!builtin<compat/typescript>::version=5.6.2&hash=8c6c40"]\
@@ -1576,6 +1576,14 @@ const RAW_RUNTIME_STATE =
           ["csstype", "npm:3.1.3"]\
         ],\
         "linkType": "HARD"\
+      }],\
+      ["npm:19.0.1", {\
+        "packageLocation": "./.yarn/cache/@types-react-npm-19.0.1-064b3e4fa9-25eb69114a.zip/node_modules/@types/react/",\
+        "packageDependencies": [\
+          ["@types/react", "npm:19.0.1"],\
+          ["csstype", "npm:3.1.3"]\
+        ],\
+        "linkType": "HARD"\
       }]\
     ]],\
     ["@types/react-dom", [\
@@ -5171,11 +5179,10 @@ const RAW_RUNTIME_STATE =
       }]\
     ]],\
     ["react", [\
-      ["npm:18.3.1", {\
-        "packageLocation": "./.yarn/cache/react-npm-18.3.1-af38f3c1ae-283e8c5efc.zip/node_modules/react/",\
+      ["npm:19.0.0", {\
+        "packageLocation": "./.yarn/cache/react-npm-19.0.0-e33c9aa1c0-9cad8f103e.zip/node_modules/react/",\
         "packageDependencies": [\
-          ["react", "npm:18.3.1"],\
-          ["loose-envify", "npm:1.4.0"]\
+          ["react", "npm:19.0.0"]\
         ],\
         "linkType": "HARD"\
       }]\
@@ -5192,9 +5199,9 @@ const RAW_RUNTIME_STATE =
         "packageLocation": "./.yarn/__virtual__/react-dom-virtual-d4d1b70492/0/cache/react-dom-npm-18.3.1-a805663f38-a752496c19.zip/node_modules/react-dom/",\
         "packageDependencies": [\
           ["react-dom", "virtual:72faf23a703cf0c7693820cc5ae961ac2a27f9647e5c2771017b1a3a2766c29586ed219703ef00482894baa74a05c3acdce5ad7b6d8e54c710919ec92664c79c#npm:18.3.1"],\
-          ["@types/react", "npm:18.3.10"],\
+          ["@types/react", "npm:19.0.1"],\
           ["loose-envify", "npm:1.4.0"],\
-          ["react", "npm:18.3.1"],\
+          ["react", "npm:19.0.0"],\
           ["scheduler", "npm:0.23.2"]\
         ],\
         "packagePeers": [\
diff --git a/.yarn/cache/@types-react-npm-19.0.1-064b3e4fa9-25eb69114a.zip b/.yarn/cache/@types-react-npm-19.0.1-064b3e4fa9-25eb69114a.zip
new file mode 100644
index 0000000..19d595d
Binary files /dev/null and b/.yarn/cache/@types-react-npm-19.0.1-064b3e4fa9-25eb69114a.zip differ
diff --git a/.yarn/cache/react-npm-18.3.1-af38f3c1ae-283e8c5efc.zip b/.yarn/cache/react-npm-18.3.1-af38f3c1ae-283e8c5efc.zip
deleted file mode 100644
index 486442f..0000000
Binary files a/.yarn/cache/react-npm-18.3.1-af38f3c1ae-283e8c5efc.zip and /dev/null differ
diff --git a/.yarn/cache/react-npm-19.0.0-e33c9aa1c0-9cad8f103e.zip b/.yarn/cache/react-npm-19.0.0-e33c9aa1c0-9cad8f103e.zip
new file mode 100644
index 0000000..3b7fd92
Binary files /dev/null and b/.yarn/cache/react-npm-19.0.0-e33c9aa1c0-9cad8f103e.zip differ
diff --git a/examples/cjs/package.json b/examples/cjs/package.json
index ed8aa62..64417e0 100644
--- a/examples/cjs/package.json
+++ b/examples/cjs/package.json
@@ -17,12 +17,12 @@
     "clean": "rm -rf dist && rm -rf build && rm -rf .turbo"
   },
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
     "@csstools/postcss-sass": "^5.1.1",
-    "@types/react": "^18.2.61",
+    "@types/react": "^19.0.1",
     "@types/react-dom": "^18.2.18",
     "chokidar-cli": "^3.0.0",
     "npm-run-all": "^4.1.5",
diff --git a/examples/esm-config/package.json b/examples/esm-config/package.json
index 8afa5d4..000b54e 100644
--- a/examples/esm-config/package.json
+++ b/examples/esm-config/package.json
@@ -18,13 +18,13 @@
     "clean": "rm -rf dist && rm -rf build && rm -rf .turbo"
   },
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
     "@csstools/postcss-sass": "^5.1.1",
     "@example/postcss-config-mts": "workspace:*",
-    "@types/react": "^18.2.61",
+    "@types/react": "^19.0.1",
     "@types/react-dom": "^18.2.18",
     "chokidar-cli": "^3.0.0",
     "npm-run-all": "^4.1.5",
diff --git a/examples/esm/package.json b/examples/esm/package.json
index c9f8edd..53ea7fe 100644
--- a/examples/esm/package.json
+++ b/examples/esm/package.json
@@ -18,12 +18,12 @@
     "clean": "rm -rf dist && rm -rf build && rm -rf .turbo"
   },
   "dependencies": {
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
     "@csstools/postcss-sass": "^5.1.1",
-    "@types/react": "^18.2.61",
+    "@types/react": "^19.0.1",
     "@types/react-dom": "^18.2.18",
     "chokidar-cli": "^3.0.0",
     "npm-run-all": "^4.1.5",
diff --git a/yarn.lock b/yarn.lock
index 71259b0..1a22c62 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -737,7 +737,7 @@ __metadata:
   resolution: "@example/cjs@workspace:examples/cjs"
   dependencies:
     "@csstools/postcss-sass": "npm:^5.1.1"
-    "@types/react": "npm:^18.2.61"
+    "@types/react": "npm:^19.0.1"
     "@types/react-dom": "npm:^18.2.18"
     chokidar-cli: "npm:^3.0.0"
     npm-run-all: "npm:^4.1.5"
@@ -746,7 +746,7 @@ __metadata:
     postcss-scss: "npm:^4.0.9"
     postcss-typesafe-css-modules: "workspace:*"
     prettier: "npm:^3.3.3"
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     react-dom: "npm:^18.3.1"
     sass: "npm:^1.77.8"
     typescript: "npm:~5.6.2"
@@ -759,7 +759,7 @@ __metadata:
   dependencies:
     "@csstools/postcss-sass": "npm:^5.1.1"
     "@example/postcss-config-mts": "workspace:*"
-    "@types/react": "npm:^18.2.61"
+    "@types/react": "npm:^19.0.1"
     "@types/react-dom": "npm:^18.2.18"
     chokidar-cli: "npm:^3.0.0"
     npm-run-all: "npm:^4.1.5"
@@ -768,7 +768,7 @@ __metadata:
     postcss-scss: "npm:^4.0.9"
     postcss-typesafe-css-modules: "workspace:*"
     prettier: "npm:^3.3.3"
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     react-dom: "npm:^18.3.1"
     sass: "npm:^1.77.8"
     typescript: "npm:~5.6.2"
@@ -780,7 +780,7 @@ __metadata:
   resolution: "@example/esm@workspace:examples/esm"
   dependencies:
     "@csstools/postcss-sass": "npm:^5.1.1"
-    "@types/react": "npm:^18.2.61"
+    "@types/react": "npm:^19.0.1"
     "@types/react-dom": "npm:^18.2.18"
     chokidar-cli: "npm:^3.0.0"
     npm-run-all: "npm:^4.1.5"
@@ -789,7 +789,7 @@ __metadata:
     postcss-scss: "npm:^4.0.9"
     postcss-typesafe-css-modules: "workspace:*"
     prettier: "npm:^3.3.3"
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     react-dom: "npm:^18.3.1"
     sass: "npm:^1.77.8"
     typescript: "npm:~5.6.2"
@@ -971,7 +971,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react@npm:*, @types/react@npm:^18.2.61":
+"@types/react@npm:*":
   version: 18.3.10
   resolution: "@types/react@npm:18.3.10"
   dependencies:
@@ -981,6 +981,15 @@ __metadata:
   languageName: node
   linkType: hard
 
+"@types/react@npm:^19.0.1":
+  version: 19.0.1
+  resolution: "@types/react@npm:19.0.1"
+  dependencies:
+    csstype: "npm:^3.0.2"
+  checksum: 10c0/25eb69114abb9a6d5fc4414ee584388275bbc9ac32976449cf58b95fe9880efe6b3f936c3842be9bed8c571546a9752e8d3e2095288381e9c809269f5f574f2e
+  languageName: node
+  linkType: hard
+
 "abbrev@npm:^2.0.0":
   version: 2.0.0
   resolution: "abbrev@npm:2.0.0"
@@ -3822,12 +3831,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react@npm:^18.3.1":
-  version: 18.3.1
-  resolution: "react@npm:18.3.1"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10c0/283e8c5efcf37802c9d1ce767f302dd569dd97a70d9bb8c7be79a789b9902451e0d16334b05d73299b20f048cbc3c7d288bbbde10b701fa194e2089c237dbea3
+"react@npm:^19.0.0":
+  version: 19.0.0
+  resolution: "react@npm:19.0.0"
+  checksum: 10c0/9cad8f103e8e3a16d15cb18a0d8115d8bd9f9e1ce3420310aea381eb42aa0a4f812cf047bb5441349257a05fba8a291515691e3cb51267279b2d2c3253f38471
   languageName: node
   linkType: hard