diff --git a/lib/core/settings.py b/lib/core/settings.py
index ce31502ae..a338c2968 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -18,7 +18,7 @@ from lib.core.enums import OS
 from thirdparty.six import unichr as _unichr
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.5.3.19"
+VERSION = "1.5.3.20"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/lib/request/connect.py b/lib/request/connect.py
index 8bad7ac83..56f7c7336 100644
--- a/lib/request/connect.py
+++ b/lib/request/connect.py
@@ -789,7 +789,7 @@ class Connect(object):
                     debugMsg = "got HTTP error code: %d ('%s')" % (code, status)
                     logger.debug(debugMsg)
 
-        except (_urllib.error.URLError, socket.error, socket.timeout, _http_client.HTTPException, struct.error, binascii.Error, ProxyError, SqlmapCompressionException, WebSocketException, TypeError, ValueError, OverflowError):
+        except (_urllib.error.URLError, socket.error, socket.timeout, _http_client.HTTPException, struct.error, binascii.Error, ProxyError, SqlmapCompressionException, WebSocketException, TypeError, ValueError, OverflowError, AttributeError):
             tbMsg = traceback.format_exc()
 
             if conf.debug:
@@ -797,6 +797,11 @@ class Connect(object):
 
             if checking:
                 return None, None, None
+            elif "AttributeError:" in tbMsg:
+                if "WSAECONNREFUSED" in tbMsg:
+                    return None, None, None
+                else:
+                    raise
             elif "no host given" in tbMsg:
                 warnMsg = "invalid URL address used (%s)" % repr(url)
                 raise SqlmapSyntaxException(warnMsg)