diff --git a/package.json b/package.json
index e35e1d9..25216ae 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "rollup-plugin-node-globals": "^1.2.0",
     "rollup-plugin-node-resolve": "^3.3.0",
     "rollup-plugin-replace": "^2.0.0",
-    "rollup-plugin-typescript2": "^0.12.0",
+    "rollup-plugin-typescript2": "^0.25.0",
     "typescript": "^2.8.1",
     "typescript-lit-html-plugin": "^0.2.0"
   },