diff --git a/core/package.json b/core/package.json
index 6d61446..c7ec8f2 100644
--- a/core/package.json
+++ b/core/package.json
@@ -43,8 +43,8 @@
   "devDependencies": {
     "@testing-library/react": "^14.0.0",
     "@types/react-test-renderer": "^18.0.0",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
-    "react-test-renderer": "^18.2.0"
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
+    "react-test-renderer": "^19.0.0"
   }
 }
diff --git a/www/package.json b/www/package.json
index 270da81..9314af6 100644
--- a/www/package.json
+++ b/www/package.json
@@ -12,15 +12,15 @@
     "@uiw/react-markdown-preview-example": "^1.3.1",
     "@uiw/react-xml-reader": "1.0.2",
     "goober": "^2.1.13",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0"
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0"
   },
   "devDependencies": {
     "@babel/plugin-proposal-private-property-in-object": "^7.21.11",
     "@kkt/raw-modules": "^7.5.1",
     "@kkt/scope-plugin-options": "^7.5.1",
-    "@types/react": "^18.0.31",
-    "@types/react-dom": "^18.0.11",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
     "kkt": "^7.5.1",
     "markdown-react-code-preview-loader": "^2.1.2",
     "source-map-explorer": "^2.5.3"