diff --git a/config/datanode.example.toml b/config/datanode.example.toml
index 6e7e00ab51..795ad45661 100644
--- a/config/datanode.example.toml
+++ b/config/datanode.example.toml
@@ -3,7 +3,7 @@ mode = 'distributed'
 rpc_addr = '127.0.0.1:3001'
 wal_dir = '/tmp/greptimedb/wal'
 rpc_runtime_size = 8
-mysql_addr = '127.0.0.1:3306'
+mysql_addr = '127.0.0.1:4406'
 mysql_runtime_size = 4
 
 [storage]
diff --git a/config/standalone.example.toml b/config/standalone.example.toml
index fa7ab87256..cf981a300f 100644
--- a/config/standalone.example.toml
+++ b/config/standalone.example.toml
@@ -1,7 +1,7 @@
 node_id = 0
 mode = 'standalone'
 http_addr = '127.0.0.1:4000'
-datanode_mysql_addr = '127.0.0.1:3306'
+datanode_mysql_addr = '127.0.0.1:4406'
 datanode_mysql_runtime_size = 4
 wal_dir = '/tmp/greptimedb/wal/'
 
diff --git a/src/cmd/src/datanode.rs b/src/cmd/src/datanode.rs
index 20b0c52c1f..10136101c9 100644
--- a/src/cmd/src/datanode.rs
+++ b/src/cmd/src/datanode.rs
@@ -143,7 +143,7 @@ mod tests {
         let options: DatanodeOptions = cmd.try_into().unwrap();
         assert_eq!("127.0.0.1:3001".to_string(), options.rpc_addr);
         assert_eq!("/tmp/greptimedb/wal".to_string(), options.wal_dir);
-        assert_eq!("127.0.0.1:3306".to_string(), options.mysql_addr);
+        assert_eq!("127.0.0.1:4406".to_string(), options.mysql_addr);
         assert_eq!(4, options.mysql_runtime_size);
         let MetaClientOpts {
             metasrv_addrs: metasrv_addr,
diff --git a/src/cmd/src/standalone.rs b/src/cmd/src/standalone.rs
index 11b522fee5..1bb5fc5ed0 100644
--- a/src/cmd/src/standalone.rs
+++ b/src/cmd/src/standalone.rs
@@ -87,7 +87,7 @@ impl Default for StandaloneOptions {
             mode: Mode::Standalone,
             wal_dir: "/tmp/greptimedb/wal".to_string(),
             storage: ObjectStoreConfig::default(),
-            datanode_mysql_addr: "127.0.0.1:3306".to_string(),
+            datanode_mysql_addr: "127.0.0.1:4406".to_string(),
             datanode_mysql_runtime_size: 4,
         }
     }
diff --git a/src/datanode/src/datanode.rs b/src/datanode/src/datanode.rs
index 26e77abbab..bcab485656 100644
--- a/src/datanode/src/datanode.rs
+++ b/src/datanode/src/datanode.rs
@@ -56,7 +56,7 @@ impl Default for DatanodeOptions {
             node_id: None,
             rpc_addr: "127.0.0.1:3001".to_string(),
             rpc_runtime_size: 8,
-            mysql_addr: "127.0.0.1:3306".to_string(),
+            mysql_addr: "127.0.0.1:4406".to_string(),
             mysql_runtime_size: 2,
             meta_client_opts: None,
             wal_dir: "/tmp/greptimedb/wal".to_string(),