diff --git a/old_class_components_samples/04 DisplayData/package.json b/old_class_components_samples/04 DisplayData/package.json
index 0de1df1..71c7ff2 100644
--- a/old_class_components_samples/04 DisplayData/package.json	
+++ b/old_class_components_samples/04 DisplayData/package.json	
@@ -14,8 +14,8 @@
     "mini-css-extract-plugin": "^0.4.1",
     "react": "^16.4.2",
     "react-dom": "^16.4.2",
-    "react-router": "^4.3.1",
-    "react-router-dom": "^4.3.1"
+    "react-router": "^6.0.0",
+    "react-router-dom": "^6.0.0"
   },
   "devDependencies": {
     "@types/react": "^16.4.8",