diff --git a/package.json b/package.json
index 1d80d9b..5cd5ab0 100644
--- a/package.json
+++ b/package.json
@@ -105,6 +105,7 @@
         "sinon-chai": "^3.3.0",
         "style-loader": "^0.20.2",
         "tslint": "^5.14.0",
+        "typescript": "^3.3.4000",
         "uglifyjs-webpack-plugin": "^1.3.0",
         "url-loader": "^1.1.2",
         "vue": "^2.5.17",
--
libgit2 0.21.4