diff --git a/package-lock.json b/package-lock.json
index e893cf08..05f34f96 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -23,7 +23,7 @@
         "typescript-eslint": "^8.17.0"
       },
       "devDependencies": {
-        "@types/react": "^18.3.17",
+        "@types/react": "^19.0.2",
         "eslint": "^9.16.0",
         "mocha": "^10.8.2",
         "npm-run-all": "^4.1.5",
@@ -483,21 +483,13 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/@types/prop-types": {
-      "version": "15.7.13",
-      "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.13.tgz",
-      "integrity": "sha512-hCZTSvwbzWGvhqxp/RqVqwU999pBf2vp7hzIjiYOsl8wqOmUxkQ6ddw1cV3l8811+kdUFus/q4d1Y3E3SyEifA==",
-      "dev": true,
-      "license": "MIT"
-    },
     "node_modules/@types/react": {
-      "version": "18.3.17",
-      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.17.tgz",
-      "integrity": "sha512-opAQ5no6LqJNo9TqnxBKsgnkIYHozW9KSTlFVoSUJYh1Fl/sswkEoqIugRSm7tbh6pABtYjGAjW+GOS23j8qbw==",
+      "version": "19.0.2",
+      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.0.2.tgz",
+      "integrity": "sha512-USU8ZI/xyKJwFTpjSVIrSeHBVAGagkHQKPNbxeWwql/vDmnTIBgx+TJnhFnj1NXgz8XfprU0egV2dROLGpsBEg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@types/prop-types": "*",
         "csstype": "^3.0.2"
       }
     },
diff --git a/package.json b/package.json
index 91bb3008..80cfd797 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
   "author": "cybozu",
   "license": "MIT",
   "devDependencies": {
-    "@types/react": "^18.3.17",
+    "@types/react": "^19.0.2",
     "eslint": "^9.16.0",
     "mocha": "^10.8.2",
     "npm-run-all": "^4.1.5",