diff --git a/packages/react-dock/package.json b/packages/react-dock/package.json
index a38fb208..04dc60ea 100644
--- a/packages/react-dock/package.json
+++ b/packages/react-dock/package.json
@@ -52,6 +52,7 @@
     "@types/react-test-renderer": "^16.9.5",
     "@types/styled-components": "^5.1.13",
     "react": "^16.14.0",
+    "react-is": "^16.13.1",
     "react-bootstrap": "^1.6.1",
     "react-dom": "^16.14.0",
     "react-hot-loader": "^4.13.0",