diff --git a/package.json b/package.json
index 3b5e56d..7cbe26b 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
     "pretty-quick": "1.11.1",
     "tsdx": "0.9.3",
     "tslib": "1.10.0",
-    "typescript": "3.6.3"
+    "typescript": "3.9.10"
   },
   "dependencies": {
     "command-line-application": "^0.8.0",
diff --git a/yarn.lock b/yarn.lock
index 1532d52..77fb8e1 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7269,10 +7269,10 @@ typescript-memoize@^1.0.0-alpha.3:
   dependencies:
     core-js "2.4.1"
 
-typescript@3.6.3:
-  version "3.6.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.6.3.tgz#fea942fabb20f7e1ca7164ff626f1a9f3f70b4da"
-  integrity sha512-N7bceJL1CtRQ2RiG0AQME13ksR7DiuQh/QehubYcghzv20tnh+MQnQIuJddTmsbqYj+dztchykemz0zFzlvdQw==
+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==
 
 typical@^2.6.1:
   version "2.6.1"