diff --git a/README.md b/README.md
index bcb0baf..a948a52 100644
--- a/README.md
+++ b/README.md
@@ -35,6 +35,14 @@ session.query("USE testdb; INSERT INTO testtable VALUES (1), (2), (3);")
 ret = session.query("SELECT * FROM testtable;")
 console.log("Session Query Result:", ret);
 
+// If an error occurs, it will be thrown
+try {
+    session.query("SELECT * FROM non_existent_table;", "CSV");
+}
+catch (e) {
+    console.log("Error:", e.message);
+}
+
 // Clean up the session
 session.cleanup();
 
diff --git a/example.js b/example.js
index ff98bf8..72d400a 100644
--- a/example.js
+++ b/example.js
@@ -19,5 +19,13 @@ session.query("USE testdb; INSERT INTO testtable VALUES (1), (2), (3);")
 ret = session.query("SELECT * FROM testtable;")
 console.log("Session Query Result:", ret);
 
+// Test error handling
+try {
+    session.query("SELECT * FROM non_existent_table;", "CSV");
+}
+catch (e) {
+    console.log("Error:", e.message);
+}
+
 // Clean up the session
 session.cleanup();
diff --git a/package.json b/package.json
index b6e6edc..d3b89ff 100644
--- a/package.json
+++ b/package.json
@@ -9,14 +9,14 @@
   },
   "scripts": {
     "install": "npm run libchdb && npm run build",
-    "test": "mocha",
+    "test": "mocha --timeout 5000",
     "libchdb": "curl -sL https://lib.chdb.io | bash && cp -a /usr/local/lib/libchdb.so ./ && cp -a /usr/local/include/chdb.h ./",
     "fixloaderpath": "./fix_loader_path.sh",
     "build": "node-gyp configure build --verbose && npm run fixloaderpath"
   },
   "author": {
     "name": "chdb",
-    "email": "me@chdb.io"
+    "email": "auxten@clickhouse.com"
   },
   "license": "Apache-2.0",
   "devDependencies": {