diff --git a/src/zeep/transports.py b/src/zeep/transports.py
index 99e28bb8..dd97703c 100644
--- a/src/zeep/transports.py
+++ b/src/zeep/transports.py
@@ -67,7 +67,7 @@ def get(self, address, params, headers):
         )
         return response
 
-    def post(self, address, message, headers):
+    def post(self, address, message, headers, params={}):
         """Proxy to requests.posts()
 
         :param address: The URL for the request
@@ -82,7 +82,7 @@ def post(self, address, message, headers):
             self.logger.debug("HTTP Post to %s:\n%s", address, log_message)
 
         response = self.session.post(
-            address, data=message, headers=headers, timeout=self.operation_timeout
+            address, data=message, headers=headers, timeout=self.operation_timeout, params=params
         )
 
         if self.logger.isEnabledFor(logging.DEBUG):
@@ -106,7 +106,7 @@ def post(self, address, message, headers):
 
         return response
 
-    def post_xml(self, address, envelope, headers):
+    def post_xml(self, address, envelope, headers, params={}):
         """Post the envelope xml element to the given address with the headers.
 
         This method is intended to be overriden if you want to customize the
@@ -115,7 +115,7 @@ def post_xml(self, address, envelope, headers):
 
         """
         message = etree_to_string(envelope)
-        return self.post(address, message, headers)
+        return self.post(address, message, headers, params)
 
     def load(self, url):
         """Load the content from the given URL"""
diff --git a/tests/test_transports.py b/tests/test_transports.py
index ce8ad193..b70af027 100644
--- a/tests/test_transports.py
+++ b/tests/test_transports.py
@@ -7,6 +7,7 @@
 
 from zeep import cache, transports
 
+from lxml import etree as ET
 
 @pytest.mark.requests
 def test_no_cache():
@@ -73,3 +74,18 @@ def test_settings_set_context_timeout():
             assert transport.operation_timeout == 90
         assert transport.operation_timeout == 120
     assert transport.operation_timeout is None
+
+def test_post_with_params():
+    transport = transports.Transport()
+    with requests_mock.mock() as m:
+        m.post("http://tests.python-zeep.org/test.xml?param_x=value_x", text="responseBody")
+        result = transport.post("http://tests.python-zeep.org/test.xml", message="requestBody", headers={}, params={"param_x": "value_x"})
+        assert result.text == "responseBody"
+
+def test_post_xml_with_params():
+    transport = transports.Transport()
+    with requests_mock.mock() as m:
+        m.post("http://tests.python-zeep.org/test.xml?param_x=value_x", text="responseBody")
+        envelope = ET.Element("a")
+        result = transport.post_xml("http://tests.python-zeep.org/test.xml", envelope=envelope, headers={}, params={"param_x": "value_x"})
+        assert result.text == "responseBody"
\ No newline at end of file