diff --git a/package-lock.json b/package-lock.json
index c34091e..f087294 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -20271,6 +20271,12 @@
             "interpret": "^1.0.0",
             "rechoir": "^0.6.2"
           }
+        },
+        "typescript": {
+          "version": "3.1.8",
+          "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.1.8.tgz",
+          "integrity": "sha512-R97qglMfoKjfKD0N24o7W6bS+SwjN/eaQNIaxR8S5HdLRnt7rCk6LCmE3tve1KN8gXKgbJU51aZHRRMAQcIbMA==",
+          "dev": true
         }
       }
     },
@@ -20287,9 +20293,9 @@
       "dev": true
     },
     "typescript": {
-      "version": "3.1.6",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.1.6.tgz",
-      "integrity": "sha512-tDMYfVtvpb96msS1lDX9MEdHrW4yOuZ4Kdc4Him9oU796XldPYF/t2+uKoX0BBa0hXXwDlqYQbXY5Rzjzc5hBA==",
+      "version": "3.9.9",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.9.tgz",
+      "integrity": "sha512-kdMjTiekY+z/ubJCATUPlRDl39vXYiMV9iyeMuEuXZh2we6zz80uovNN2WlAxmmdE/Z/YQe+EbOEXB5RHEED3w==",
       "dev": true
     },
     "uglify-js": {