diff --git a/app/package-lock.json b/app/package-lock.json
index 91eea3d..635b7b4 100644
--- a/app/package-lock.json
+++ b/app/package-lock.json
@@ -22,7 +22,7 @@
         "@react-hook/resize-observer": "^2.0.2",
         "@tabler/icons-react": "^3.35.0",
         "codemirror": "^6.0.2",
-        "react": "^18.3.1",
+        "react": "^19.2.0",
         "react-arborist": "^3.4.3",
         "react-dom": "^18.3.1",
         "rehype-highlight": "^7.0.2",
@@ -41,8 +41,8 @@
         "@testing-library/react": "^16.3.0",
         "@types/babel__core": "^7.20.5",
         "@types/node": "^24.10.1",
-        "@types/react": "^18.3.20",
-        "@types/react-dom": "^18.3.6",
+        "@types/react": "^19.2.5",
+        "@types/react-dom": "^19.2.3",
         "@typescript-eslint/eslint-plugin": "^8.46.4",
         "@typescript-eslint/parser": "^8.32.1",
         "@vitejs/plugin-react": "^5.1.1",
@@ -2558,32 +2558,24 @@
         "undici-types": "~7.16.0"
       }
     },
-    "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==",
-      "devOptional": true,
-      "license": "MIT"
-    },
     "node_modules/@types/react": {
-      "version": "18.3.20",
-      "resolved": "https://registry.npmjs.org/@types/react/-/react-18.3.20.tgz",
-      "integrity": "sha512-IPaCZN7PShZK/3t6Q87pfTkRm6oLTd4vztyoj+cbHUF1g3FfVb2tFIL79uCRKEfv16AhqDMBywP2VW3KIZUvcg==",
+      "version": "19.2.5",
+      "resolved": "https://registry.npmjs.org/@types/react/-/react-19.2.5.tgz",
+      "integrity": "sha512-keKxkZMqnDicuvFoJbzrhbtdLSPhj/rZThDlKWCDbgXmUg0rEUFtRssDXKYmtXluZlIqiC5VqkCgRwzuyLHKHw==",
       "devOptional": true,
       "license": "MIT",
       "dependencies": {
-        "@types/prop-types": "*",
         "csstype": "^3.0.2"
       }
     },
     "node_modules/@types/react-dom": {
-      "version": "18.3.6",
-      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-18.3.6.tgz",
-      "integrity": "sha512-nf22//wEbKXusP6E9pfOCDwFdHAX4u172eaJI4YkDRQEZiorm6KfYnSC2SWLDMVWUOWPERmJnN0ujeAfTBLvrw==",
+      "version": "19.2.3",
+      "resolved": "https://registry.npmjs.org/@types/react-dom/-/react-dom-19.2.3.tgz",
+      "integrity": "sha512-jp2L/eY6fn+KgVVQAOqYItbF0VY/YApe5Mz2F0aykSO8gx31bYCZyvSeYxCHKvzHG5eZjc+zyaS5BrBWya2+kQ==",
       "dev": true,
       "license": "MIT",
       "peerDependencies": {
-        "@types/react": "^18.0.0"
+        "@types/react": "^19.2.0"
       }
     },
     "node_modules/@types/unist": {
@@ -7426,13 +7418,10 @@
       "license": "MIT"
     },
     "node_modules/react": {
-      "version": "18.3.1",
-      "resolved": "https://registry.npmjs.org/react/-/react-18.3.1.tgz",
-      "integrity": "sha512-wS+hAgJShR0KhEvPJArfuPVN1+Hz1t0Y6n5jLrGQbkb4urgPE/0Rve+1kMB1v/oWgHgm4WIcV+i7F2pTVj+2iQ==",
+      "version": "19.2.0",
+      "resolved": "https://registry.npmjs.org/react/-/react-19.2.0.tgz",
+      "integrity": "sha512-tmbWg6W31tQLeB5cdIBOicJDJRR2KzXsV7uSK9iNfLWQ5bIZfxuPEHp7M8wiHyHnn0DD1i7w3Zmin0FtkrwoCQ==",
       "license": "MIT",
-      "dependencies": {
-        "loose-envify": "^1.1.0"
-      },
       "engines": {
         "node": ">=0.10.0"
       }
@@ -9157,12 +9146,12 @@
       }
     },
     "node_modules/use-sync-external-store": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.2.2.tgz",
-      "integrity": "sha512-PElTlVMwpblvbNqQ82d2n6RjStvdSoNe9FG28kNfz3WiXilJm4DdNkEzRhCZuIDwY8U08WVihhGR5iRqAwfDiw==",
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+      "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
       "license": "MIT",
       "peerDependencies": {
-        "react": "^16.8.0 || ^17.0.0 || ^18.0.0"
+        "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
       }
     },
     "node_modules/util-deprecate": {
diff --git a/app/package.json b/app/package.json
index f254f14..d7d4dc3 100644
--- a/app/package.json
+++ b/app/package.json
@@ -42,7 +42,7 @@
     "@react-hook/resize-observer": "^2.0.2",
     "@tabler/icons-react": "^3.35.0",
     "codemirror": "^6.0.2",
-    "react": "^18.3.1",
+    "react": "^19.2.0",
     "react-arborist": "^3.4.3",
     "react-dom": "^18.3.1",
     "rehype-highlight": "^7.0.2",
@@ -61,8 +61,8 @@
     "@testing-library/react": "^16.3.0",
     "@types/babel__core": "^7.20.5",
     "@types/node": "^24.10.1",
-    "@types/react": "^18.3.20",
-    "@types/react-dom": "^18.3.6",
+    "@types/react": "^19.2.5",
+    "@types/react-dom": "^19.2.3",
     "@typescript-eslint/eslint-plugin": "^8.46.4",
     "@typescript-eslint/parser": "^8.32.1",
     "@vitejs/plugin-react": "^5.1.1",