diff --git a/webapp/package.json b/webapp/package.json
index d9ec45e..10e7ae7 100644
--- a/webapp/package.json
+++ b/webapp/package.json
@@ -47,7 +47,7 @@
     "prettier": "^3.3.3",
     "react-scripts": "^5.0.1",
     "serve": "^14.2.3",
-    "typescript": "5.5.4"
+    "typescript": "5.9.3"
   },
   "browserslist": {
     "production": [
diff --git a/webapp/yarn.lock b/webapp/yarn.lock
index de632bc..0c1e37d 100644
--- a/webapp/yarn.lock
+++ b/webapp/yarn.lock
@@ -11521,10 +11521,10 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
-typescript@5.5.4:
-  version "5.5.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.5.4.tgz#d9852d6c82bad2d2eda4fd74a5762a8f5909e9ba"
-  integrity sha512-Mtq29sKDAEYP7aljRgtPOpTvOfbwRWlS6dPRzwjdE+C0R4brX/GUyhHSecbHMFLNBLcJIPt9nl9yG5TZ1weH+Q==
+typescript@5.9.3:
+  version "5.9.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.9.3.tgz#5b4f59e15310ab17a216f5d6cf53ee476ede670f"
+  integrity sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==
 
 unbox-primitive@^1.0.2:
   version "1.0.2"