diff --git a/package.json b/package.json
index f645b605..abd2ec2e 100644
--- a/package.json
+++ b/package.json
@@ -65,6 +65,7 @@
     "@types/pako": "^2.0.0",
     "@types/react": "^17.0.39",
     "@types/react-dom": "^17.0.11",
+    "@types/react-helmet": "^6.1.6",
     "@types/react-router": "^5.1.18",
     "@types/react-router-dom": "^5.3.3",
     "@types/react-stickynode": "^4.0.0",