diff --git a/client/qiskit_serverless/core/clients/serverless_client.py b/client/qiskit_serverless/core/clients/serverless_client.py
index e1bc82245..73f97964a 100644
--- a/client/qiskit_serverless/core/clients/serverless_client.py
+++ b/client/qiskit_serverless/core/clients/serverless_client.py
@@ -107,7 +107,6 @@ class ServerlessClient(BaseClient):  # pylint: disable=too-many-public-methods
     def __init__(  # pylint:  disable=too-many-positional-arguments
         self,
         host: Optional[str] = None,
-        version: Optional[str] = None,
         token: Optional[str] = None,
         instance: Optional[str] = None,
         channel: Optional[str] = None,
@@ -117,7 +116,6 @@ def __init__(  # pylint:  disable=too-many-positional-arguments
 
         Args:
             host: host of gateway. If None, it uses the ENV_GATEWAY_PROVIDER_HOST env var
-            version: version of gateway
             token: authorization token
             instance: IBM Cloud CRN
             channel: identifies the method to use to authenticate the user
@@ -127,7 +125,7 @@ def __init__(  # pylint:  disable=too-many-positional-arguments
             raise QiskitServerlessException("Please provide `host` of gateway.")
         host = host.rstrip("/")
 
-        version = version or os.environ.get(ENV_GATEWAY_PROVIDER_VERSION)
+        version = os.environ.get(ENV_GATEWAY_PROVIDER_VERSION)
         if version is None:
             version = GATEWAY_PROVIDER_VERSION_DEFAULT
 
diff --git a/client/tests/core/test_job.py b/client/tests/core/test_job.py
index b43bb3d12..fb84187d6 100644
--- a/client/tests/core/test_job.py
+++ b/client/tests/core/test_job.py
@@ -131,7 +131,7 @@ def test_update_sub_status(self, job_env_variables):
     @patch("requests.get", Mock(return_value=ResponseMock()))
     def test_filtered_logs(self):
         """Tests job filtered log."""
-        client = ServerlessClient(host="host", token="token", instance="instance", version="version")
+        client = ServerlessClient(host="host", token="token", instance="instance")
         client.logs = MagicMock(
             return_value="This is the line 1\nThis is the second line\nOK.  This is the last line.\n",  # pylint: disable=line-too-long
         )
@@ -142,7 +142,7 @@ def test_filtered_logs(self):
     @patch("requests.get", Mock(return_value=ResponseMock()))
     def test_error_message(self):
         """Tests job filtered log."""
-        client = ServerlessClient(host="host", token="token", instance="instance", version="version")
+        client = ServerlessClient(host="host", token="token", instance="instance")
         client.status = MagicMock(
             return_value="ERROR",
         )
@@ -167,7 +167,7 @@ def test_error_message(self):
     )
     def test_runtime_sessions(self):
         """Tests runtime session id retrieval for serverless job."""
-        client = ServerlessClient(host="host", token="token", instance="instance", version="v1")
+        client = ServerlessClient(host="host", token="token", instance="instance")
 
         job_id = "8317718f-5c0d-4fb6-9947-72e480b8a348"
         runtime_sessions = client.runtime_sessions(job_id)
@@ -182,7 +182,7 @@ def test_runtime_sessions(self):
     )
     def test_runtime_jobs(self):
         """Tests runtime job id retrieval for serverless job."""
-        client = ServerlessClient(host="host", token="token", instance="instance", version="v1")
+        client = ServerlessClient(host="host", token="token", instance="instance")
 
         job_id = "8317718f-5c0d-4fb6-9947-72e480b8a348"
         runtime_jobs = client.runtime_jobs(job_id)
diff --git a/client/tests/core/test_serverless_client_functions.py b/client/tests/core/test_serverless_client_functions.py
index be20a8b5f..2c52358a7 100644
--- a/client/tests/core/test_serverless_client_functions.py
+++ b/client/tests/core/test_serverless_client_functions.py
@@ -43,7 +43,6 @@ def mock_client():
             token="test-token",
             instance="test-instance",
             channel="ibm_quantum_platform",
-            version="v1",
         )
     return client
 
diff --git a/client/tests/core/test_serverless_client_jobs.py b/client/tests/core/test_serverless_client_jobs.py
index 734111969..17619f790 100644
--- a/client/tests/core/test_serverless_client_jobs.py
+++ b/client/tests/core/test_serverless_client_jobs.py
@@ -36,7 +36,6 @@ def mock_client():
             host="https://test-host.com",
             token="test-token",
             instance="test-instance",
-            version="v1",
         )
         return client