diff --git a/packages/nivo-heatmap/package.json b/packages/nivo-heatmap/package.json
index 4679b39467..684f8a92cb 100644
--- a/packages/nivo-heatmap/package.json
+++ b/packages/nivo-heatmap/package.json
@@ -6,6 +6,7 @@
   "files": [
     "README.md",
     "index.js",
+    "index.d.ts",
     "cjs/"
   ],
   "dependencies": {