diff --git a/commafeed-client/package-lock.json b/commafeed-client/package-lock.json
index c0921a87..df10a68a 100644
--- a/commafeed-client/package-lock.json
+++ b/commafeed-client/package-lock.json
@@ -62,7 +62,7 @@
                 "babel-plugin-react-compiler": "^19.1.0-rc.2",
                 "jsdom": "^26.1.0",
                 "rollup-plugin-visualizer": "^6.0.3",
-                "typescript": "^5.8.3",
+                "typescript": "^5.9.2",
                 "vite": "^7.0.6",
                 "vite-plugin-checker": "^0.10.2",
                 "vite-tsconfig-paths": "^5.1.4",
@@ -5966,9 +5966,9 @@
             }
         },
         "node_modules/typescript": {
-            "version": "5.8.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
-            "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+            "version": "5.9.2",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.2.tgz",
+            "integrity": "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A==",
             "dev": true,
             "license": "Apache-2.0",
             "bin": {
diff --git a/commafeed-client/package.json b/commafeed-client/package.json
index bab1066f..bfcebe2f 100644
--- a/commafeed-client/package.json
+++ b/commafeed-client/package.json
@@ -69,7 +69,7 @@
         "babel-plugin-react-compiler": "^19.1.0-rc.2",
         "jsdom": "^26.1.0",
         "rollup-plugin-visualizer": "^6.0.3",
-        "typescript": "^5.8.3",
+        "typescript": "^5.9.2",
         "vite": "^7.0.6",
         "vite-plugin-checker": "^0.10.2",
         "vite-tsconfig-paths": "^5.1.4",