diff --git a/DOCKER_VERSION b/DOCKER_VERSION
index 09d22fa5..d938f420 100644
--- a/DOCKER_VERSION
+++ b/DOCKER_VERSION
@@ -1 +1 @@
-6.2.6
+6.2.7
diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index e9766e9d..2a497846 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -1,6 +1,10 @@
 # Changelog
 All notable changes to this project will be documented in this file.
 
+## [6.2.7] - 2019-09-25
+
+- Stop having ws send subcommand send a binary message in text mode, which would cause error in `make ws_test` shell script test.
+
 ## [6.2.6] - 2019-09-24
 
 - Fix 2 race conditions detected with TSan, one in CobraMetricsPublisher::push and another one in WebSocketTransport::sendData (that one was bad).
diff --git a/ixwebsocket/IXWebSocketVersion.h b/ixwebsocket/IXWebSocketVersion.h
index a7613f74..b64535c2 100644
--- a/ixwebsocket/IXWebSocketVersion.h
+++ b/ixwebsocket/IXWebSocketVersion.h
@@ -6,4 +6,4 @@
 
 #pragma once
 
-#define IX_WEBSOCKET_VERSION "6.2.6"
+#define IX_WEBSOCKET_VERSION "6.2.7"
diff --git a/test/IXWebSocketChatTest.cpp b/test/IXWebSocketChatTest.cpp
index 01080a86..2bf6b456 100644
--- a/test/IXWebSocketChatTest.cpp
+++ b/test/IXWebSocketChatTest.cpp
@@ -273,7 +273,7 @@ TEST_CASE("Websocket_chat", "[websocket_chat]")
         chatB.sendMessage("from B1");
         chatB.sendMessage("from B2");
 
-        // Test large messages that needs to be broken into small fragments
+        // Test large messages that need to be broken into small fragments
         size_t size = 1 * 1024 * 1024; // ~1Mb
         std::string bigMessage(size, 'a');
         chatB.sendMessage(bigMessage);
diff --git a/ws/ws_receive.cpp b/ws/ws_receive.cpp
index 24b30e81..ebb62a0a 100644
--- a/ws/ws_receive.cpp
+++ b/ws/ws_receive.cpp
@@ -59,7 +59,7 @@ namespace ix
         , _delayMs(delayMs)
         , _receivedFragmentCounter(0)
     {
-        ;
+        _webSocket.disableAutomaticReconnection();
     }
 
     void WebSocketReceiver::stop()
@@ -113,7 +113,7 @@ namespace ix
         pdu["message"] = errMsg;
 
         MsgPack msg(pdu);
-        _webSocket.send(msg.dump());
+        _webSocket.sendBinary(msg.dump());
     }
 
     void WebSocketReceiver::handleMessage(const std::string& str)
@@ -164,8 +164,9 @@ namespace ix
         pdu["id"] = data["id"];
         pdu["filename"] = data["filename"];
 
+        std::cout << "Sending ack to sender" << std::endl;
         MsgPack msg(pdu);
-        _webSocket.send(msg.dump());
+        _webSocket.sendBinary(msg.dump());
     }
 
     void WebSocketReceiver::start()
diff --git a/ws/ws_send.cpp b/ws/ws_send.cpp
index 757e21e9..8f0272fb 100644
--- a/ws/ws_send.cpp
+++ b/ws/ws_send.cpp
@@ -52,7 +52,7 @@ namespace ix
         : _url(url)
         , _enablePerMessageDeflate(enablePerMessageDeflate)
     {
-        ;
+        _webSocket.disableAutomaticReconnection();
     }
 
     void WebSocketSender::stop()