diff --git a/package.json b/package.json
index 626d67b..db697b8 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "react": "^16.9.0",
     "react-dom": "^16.9.0",
     "react-scripts": "3.0.1",
-    "typescript": "3.5.3"
+    "typescript": "3.9.5"
   },
   "devDependencies": {
     "@types/google-protobuf": "^3.7.1"
diff --git a/yarn.lock b/yarn.lock
index 831283c..e50d3b3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9287,10 +9287,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.5.3:
-  version "3.5.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.5.3.tgz#c830f657f93f1ea846819e929092f5fe5983e977"
-  integrity sha512-ACzBtm/PhXBDId6a6sDJfroT2pOWt/oOnk4/dElG5G33ZL776N3Y6/6bKZJBFpd+b05F3Ct9qDjMeJmRWtE2/g==
+typescript@3.9.5:
+  version "3.9.5"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.5.tgz#586f0dba300cde8be52dd1ac4f7e1009c1b13f36"
+  integrity sha512-hSAifV3k+i6lEoCJ2k6R2Z/rp/H3+8sdmcn5NrS3/3kE7+RyZXm9aqvxWqjEXHAd8b0pShatpcdMTvEdvAJltQ==
 
 uglify-js@3.4.x:
   version "3.4.10"