diff --git a/package-lock.json b/package-lock.json
index 62d5b1c..8138e77 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -8735,9 +8735,9 @@
       }
     },
     "typescript": {
-      "version": "3.5.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.2.tgz",
-      "integrity": "sha512-7KxJovlYhTX5RaRbUdkAXN1KUZ8PwWlTzQdHV6xNqvuFOs7+WBo10TQUqT19Q/Jz2hk5v9TQDIhyLhhJY4p5AA==",
+      "version": "3.9.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.3.tgz",
+      "integrity": "sha512-D/wqnB2xzNFIcoBG9FG8cXRDjiqSTbG2wd8DMZeQyJlP1vfTkIxH4GKveWaEBYySKIg+USu+E+EDIR47SqnaMQ==",
       "dev": true
     },
     "uglify-js": {
diff --git a/package.json b/package.json
index d69cc20..f418025 100644
--- a/package.json
+++ b/package.json
@@ -48,7 +48,7 @@
     "tape": "^4.13.2",
     "tape-promise": "^3.0.0",
     "ts-node": "^8.10.1",
-    "typescript": "^3.5.2"
+    "typescript": "^3.9.3"
   },
   "dependencies": {
     "camelcase-keys": "^6.2.2",