diff --git a/benchmarks/runner/package.json b/benchmarks/runner/package.json
index ea2bd06e..8c807c22 100644
--- a/benchmarks/runner/package.json
+++ b/benchmarks/runner/package.json
@@ -27,6 +27,6 @@
     "mitata": "1.0.34",
     "nano-jsx": "0.1.0",
     "preact-render-to-string": "6.5.13",
-    "react-dom": "18.3.1"
+    "react-dom": "19.1.1"
   }
 }
diff --git a/packages/html/package.json b/packages/html/package.json
index a57b18be..9de173cb 100644
--- a/packages/html/package.json
+++ b/packages/html/package.json
@@ -43,7 +43,7 @@
     "c8": "^10.1.3",
     "jsdom": "^26.1.0",
     "react": "^18.3.1",
-    "react-dom": "^18.3.1",
+    "react-dom": "^19.1.1",
     "typescript": "^5.9.2"
   },
   "engines": {
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index d5fddb6f..6bca79f6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -185,8 +185,8 @@ importers:
         specifier: 6.5.13
         version: 6.5.13(preact@10.26.8)
       react-dom:
-        specifier: 18.3.1
-        version: 18.3.1(react@18.3.1)
+        specifier: 19.1.1
+        version: 19.1.1(react@18.3.1)
 
   benchmarks/templates:
     dependencies:
@@ -290,8 +290,8 @@ importers:
         specifier: ^18.3.1
         version: 18.3.1
       react-dom:
-        specifier: ^18.3.1
-        version: 18.3.1(react@18.3.1)
+        specifier: ^19.1.1
+        version: 19.1.1(react@18.3.1)
       typescript:
         specifier: ^5.9.2
         version: 5.9.2
@@ -1719,10 +1719,10 @@ packages:
     resolution: {integrity: sha512-ARhCpm70fzdcvNQfPoy49IaanKkTlRWF2JMzqhcJbhSFRZv7nPTvZJdcY7301IPmvW+/p0RgIWnQDLJxifsQ7g==}
     engines: {node: '>=8'}
 
-  react-dom@18.3.1:
-    resolution: {integrity: sha512-5m4nQKp+rZRb09LNH59GM4BxTh9251/ylbKIbpe7TpGxfJ+9kv6BLkLBXIjjspbgbnIBNqlI23tRnTWT0snUIw==}
+  react-dom@19.1.1:
+    resolution: {integrity: sha512-Dlq/5LAZgF0Gaz6yiqZCf6VCcZs1ghAJyrsu84Q/GT0gV+mCxbfmKNoGRKBYMJ8IEdGPqu49YWXD02GCknEDkw==}
     peerDependencies:
-      react: ^18.3.1
+      react: ^19.1.1
 
   react-is@18.3.1:
     resolution: {integrity: sha512-/LLMVyas0ljjAtoYiPqYiL8VWXzUUdThrmU5+n20DZv+a+ClRoevUzw5JxU+Ieh5/c87ytoTBV9G1FiKfNJdmg==}
@@ -1805,8 +1805,8 @@ packages:
     resolution: {integrity: sha512-xAg7SOnEhrm5zI3puOOKyy1OMcMlIJZYNJY7xLBwSze0UjhPLnWfj2GF2EpT0jmzaJKIWKHLsaSSajf35bcYnA==}
     engines: {node: '>=v12.22.7'}
 
-  scheduler@0.23.2:
-    resolution: {integrity: sha512-UOShsPwz7NrMUqhR6t0hWjFduvOzbtv7toDH1/hIrfRNIDBnnBWd0CwJTGvTpngVlmwGCdP9/Zl/tVrDqcuYzQ==}
+  scheduler@0.26.0:
+    resolution: {integrity: sha512-NlHwttCI/l5gCPR3D1nNXtWABUmBwvZpEQiD4IXSbIDq8BzLIK/7Ir5gTFSGZDUu37K5cMNp0hFtzO38sC7gWA==}
 
   secure-json-parse@4.0.0:
     resolution: {integrity: sha512-dxtLJO6sc35jWidmLxo7ij+Eg48PM/kleBsxpC8QJE0qJICe+KawkDQmvCMZUr9u7WKVHgMW6vy3fQ7zMiFZMA==}
@@ -3641,11 +3641,10 @@ snapshots:
 
   quick-lru@4.0.1: {}
 
-  react-dom@18.3.1(react@18.3.1):
+  react-dom@19.1.1(react@18.3.1):
     dependencies:
-      loose-envify: 1.4.0
       react: 18.3.1
-      scheduler: 0.23.2
+      scheduler: 0.26.0
 
   react-is@18.3.1: {}
 
@@ -3720,9 +3719,7 @@ snapshots:
     dependencies:
       xmlchars: 2.2.0
 
-  scheduler@0.23.2:
-    dependencies:
-      loose-envify: 1.4.0
+  scheduler@0.26.0: {}
 
   secure-json-parse@4.0.0: {}