diff --git a/package-lock.json b/package-lock.json
index 6ea9d671..a22791ff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7530,9 +7530,9 @@
             "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
         },
         "typescript": {
-            "version": "3.8.3",
-            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.8.3.tgz",
-            "integrity": "sha512-MYlEfn5VrLNsgudQTVJeNaQFUAI7DkhnOjdpAp4T+ku1TfQClewlbSuTVHiA+8skNBgaf02TL/kLOvig4y3G8w=="
+            "version": "3.9.8",
+            "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.9.8.tgz",
+            "integrity": "sha512-nDbnFkUZZjkQ92qwKX+C+jtk4OGfU8H9toSEs3uAsl8cxLjG2sqQm6leF/pLWvm9FAEJ6KHkYMAbHYaY2ITeVg=="
         },
         "uglify-js": {
             "version": "3.6.0",
diff --git a/package.json b/package.json
index 9d5a1018..120f8364 100644
--- a/package.json
+++ b/package.json
@@ -107,7 +107,7 @@
         "prettydiff2": "^2.2.8",
         "stylelint": "^9.7.1",
         "tslint": "^5.20.1",
-        "typescript": "3.8.3",
+        "typescript": "3.9.8",
         "unibeautify": "^0.17.0"
     },
     "contributes": {