diff --git a/lib/adapters/http.js b/lib/adapters/http.js
index a39773f9f7..98ab7d89a1 100755
--- a/lib/adapters/http.js
+++ b/lib/adapters/http.js
@@ -313,6 +313,12 @@ module.exports = function httpAdapter(config) {
       reject(enhanceError(err, config, null, req));
     });
 
+    // set tcp keep alive to prevent drop connection by peer
+    req.on('socket', function handleRequestSocket(socket) {
+      // default interval of sending ack packet is 1 minute
+      socket.setKeepAlive(true, 1000 * 60);
+    });
+
     // Handle request timeout
     if (config.timeout) {
       // This is forcing a int timeout to avoid problems if the `req` interface doesn't handle other types.