diff --git a/netsuite/soap_api/client.py b/netsuite/soap_api/client.py
index 97db3f7..6dfda17 100644
--- a/netsuite/soap_api/client.py
+++ b/netsuite/soap_api/client.py
@@ -97,13 +97,9 @@ def _generate_wsdl_url(self) -> str:
     def _generate_cache(self) -> zeep.cache.Base:
         return zeep.cache.SqliteCache(timeout=60 * 60 * 24 * 365)
 
-    def _generate_session(self) -> zeep.requests.Session:
-        return zeep.requests.Session()
-
     def _generate_transport(self) -> zeep.transports.AsyncTransport:
         return AsyncNetSuiteTransport(
             self.wsdl_url,
-            session=self._generate_session(),
             cache=self.cache,
         )
 
diff --git a/pyproject.toml b/pyproject.toml
index 12b665c..f7819b4 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ httpx = "~0.23"
 pydantic = "~1"
 orjson = {version = "~3", optional = true}
 ipython = {version = "~8", optional = true, python = "^3.8"}
-zeep = {version = "~4", optional = true, extras = ["async"]}
+zeep = {version = "4.2.1", optional = true, extras = ["async"]}
 oauthlib = "~3"
 
 [tool.poetry.extras]
diff --git a/tests/test_soap_api.py b/tests/test_soap_api.py
index 710aed1..6bbc2ac 100644
--- a/tests/test_soap_api.py
+++ b/tests/test_soap_api.py
@@ -17,3 +17,7 @@ def test_netsuite_wsdl_url(dummy_config):
         soap_api.wsdl_url
         == "https://123456-sb1.suitetalk.api.netsuite.com/wsdl/v2021_1_0/netsuite.wsdl"
     )
+
+def test_netsuite_transport_initialization(dummy_config):
+    soap_api = NetSuiteSoapApi(dummy_config)
+    soap_api._generate_transport()