diff --git a/package.json b/package.json
index 26da429..72a8889 100644
--- a/package.json
+++ b/package.json
@@ -103,6 +103,7 @@
     "rimraf": "^2.6.1",
     "run-sequence": "^1.2.2",
     "svgo": "^0.7.1",
+    "typescript": "^2.3.3",
     "yamljs": "^0.2.10",
     "yargs": "^7.1.0"
   }
diff --git a/yarn.lock b/yarn.lock
index 803a19a..b2ee03b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3493,6 +3493,10 @@ typedarray@^0.0.6:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
 
+typescript@^2.3.3:
+  version "2.3.3"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-2.3.3.tgz#9639f3c3b40148e8ca97fe08a51dd1891bb6be22"
+
 uglify-js@^2.6:
   version "2.8.27"
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-2.8.27.tgz#47787f912b0f242e5b984343be8e35e95f694c9c"