diff --git a/package.json b/package.json
index 1d56e81..46b4dbb 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,7 @@
     "react-router-dom": "4.3.1",
     "subscriptions-transport-ws": "0.9.16",
     "ts-node": "8.0.3",
-    "typescript": "3.3.4000"
+    "typescript": "3.9.10"
   },
   "devDependencies": {
     "@babel/core": "7.3.4",
diff --git a/yarn.lock b/yarn.lock
index 33d8cb8..b79018f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10466,10 +10466,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.3.4000:
-  version "3.3.4000"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.3.4000.tgz#76b0f89cfdbf97827e1112d64f283f1151d6adf0"
-  integrity sha512-jjOcCZvpkl2+z7JFn0yBOoLQyLoIkNZAs/fYJkUG6VKy6zLPHJGfQJYFHzibB6GJaF/8QrcECtlQ5cpvRHSMEA==
+typescript@3.9.10:
+  version "3.9.10"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.10.tgz#70f3910ac7a51ed6bef79da7800690b19bf778b8"
+  integrity sha512-w6fIxVE/H1PkLKcCPsFqKE7Kv7QUwhU8qQY2MueZXWx5cPZdwFupLgKK3vntcK98BtNHZtAF4LA/yl2a7k8R6Q==
 
 uc.micro@^1.0.1, uc.micro@^1.0.5:
   version "1.0.6"