diff --git a/package.json b/package.json
index c6c44c5..e826676 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "jest": "^25.5.3",
     "react-axe": "^3.4.1",
     "ts-jest": "^25.4.0",
-    "typescript": "^3.8.3",
+    "typescript": "^3.9.9",
     "webpack-dev-server": "^3.10.3"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d8d4215..ef8b35c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5728,9 +5728,9 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
-typescript@^3.8.3:
-  version "3.8.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"
+typescript@^3.9.9:
+  version "3.9.9"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.9.tgz#e69905c54bc0681d0518bd4d587cc6f2d0b1a674"
 
 uglify-js@3.4.x:
   version "3.4.10"