diff --git a/package.json b/package.json
index b1384cd608..109f0f8671 100644
--- a/package.json
+++ b/package.json
@@ -90,7 +90,7 @@
     "shx": "^0.3.2",
     "sinon": "^7.3.2",
     "terser-webpack-plugin": "^1.2.3",
-    "typescript": "^3.2.2",
+    "typescript": "^3.4.5",
     "url-polyfill": "^1.1.5",
     "walk": "^2.3.9",
     "webpack": "4.31.0",