diff --git a/package.json b/package.json
index 977d868..309d824 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "nodemon": "1.18.9",
     "ts-jest": "^24.0.0",
     "ts-node": "8.0.2",
-    "typescript": "3.1.6",
+    "typescript": "3.9.10",
     "vikit": "0.3.4"
   },
   "dependencies": {
diff --git a/yarn.lock b/yarn.lock
index d376cc4..89c96e5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4393,10 +4393,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@3.1.6:
-  version "3.1.6"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.6.tgz#b6543a83cfc8c2befb3f4c8fba6896f5b0c9be68"
-  integrity sha512-tDMYfVtvpb96msS1lDX9MEdHrW4yOuZ4Kdc4Him9oU796XldPYF/t2+uKoX0BBa0hXXwDlqYQbXY5Rzjzc5hBA==
+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==
 
 uglify-js@^3.1.4:
   version "3.4.9"