diff --git a/package-lock.json b/package-lock.json
index 3376d93..e01e4c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1953,9 +1953,9 @@
       }
     },
     "typescript": {
-      "version": "3.5.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.5.2.tgz",
-      "integrity": "sha512-7KxJovlYhTX5RaRbUdkAXN1KUZ8PwWlTzQdHV6xNqvuFOs7+WBo10TQUqT19Q/Jz2hk5v9TQDIhyLhhJY4p5AA==",
+      "version": "3.9.7",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.7.tgz",
+      "integrity": "sha512-BLbiRkiBzAwsjut4x/dsibSTB6yWpwT5qWmC2OfuCg3GgVQCSgMs4vEctYPhsaGtd0AeuuHMkjZ2h2WG8MSzRw==",
       "dev": true
     },
     "uids": {
diff --git a/package.json b/package.json
index 6ca6b5f..55c7e60 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "rollup-plugin-commonjs": "10.0.0",
     "rollup-plugin-node-resolve": "5.0.3",
     "rollup-plugin-typescript2": "0.21.1",
-    "typescript": "3.5.2"
+    "typescript": "3.9.7"
   },
   "dependencies": {
     "antlr4": "^4.7.2",