diff --git a/README.md b/README.md
index 86a1d89..58151a5 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,8 @@ Online parquet file reader demo available at:
 
 https://hyparam.github.io/hyparquet/
 
+[![demo](demo.png)](https://hyparam.github.io/hyparquet/)
+
 ## Features
 
 1. **Performant**: Designed to efficiently process large datasets by only loading the required data, making it suitable for big data and machine learning applications.
diff --git a/demo.png b/demo.png
new file mode 100644
index 0000000..cc3880c
Binary files /dev/null and b/demo.png differ
diff --git a/package.json b/package.json
index 67dac37..90cc887 100644
--- a/package.json
+++ b/package.json
@@ -31,20 +31,20 @@
     "@rollup/plugin-node-resolve": "15.2.3",
     "@rollup/plugin-replace": "5.0.7",
     "@rollup/plugin-terser": "0.4.4",
-    "@types/node": "22.5.1",
-    "@types/react": "18.3.4",
+    "@types/node": "22.5.3",
+    "@types/react": "18.3.5",
     "@types/react-dom": "18.3.0",
-    "@typescript-eslint/eslint-plugin": "8.3.0",
+    "@typescript-eslint/eslint-plugin": "8.4.0",
     "@vitest/coverage-v8": "2.0.5",
     "eslint": "8.57.0",
-    "eslint-plugin-import": "2.29.1",
+    "eslint-plugin-import": "2.30.0",
     "eslint-plugin-jsdoc": "50.2.2",
     "hightable": "0.2.3",
     "http-server": "14.1.1",
     "hyparquet-compressors": "0.1.4",
     "react": "18.3.1",
     "react-dom": "18.3.1",
-    "rollup": "4.21.1",
+    "rollup": "4.21.2",
     "typescript": "5.5.4",
     "vitest": "2.0.5"
   }