diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index fb88ae9..952ccb3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -20,5 +20,5 @@ jobs:
   test:
     uses: ./.github/workflows/shared-tests.yml
     with:
-      python-version: '3.8'
+      python-version: '3.9'
     secrets: inherit
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index bebe9f3..6d35b5b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -9,4 +9,4 @@ jobs:
   test:
     uses: ./.github/workflows/shared-tests.yml
     with:
-      python-version: '3.8'
+      python-version: '3.9'
diff --git a/requirements.txt b/requirements.txt
index 687bfb9..bc927eb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,12 @@
 python_dateutil >= 2.5.3
 setuptools >= 21.0.0
-urllib3 >= 1.25.3, < 2.1.0
+urllib3 >= 1.25.3, < 3
 pydantic >= 2
 typing-extensions >= 4.7.1
 DateTime~=5.5
-PyJWT~=2.9.0
+PyJWT>=2.12,<3
 requests~=2.32.3
 coverage
 cryptography
-python-dotenv~=1.0.1
+python-dotenv>=1.0,<2
 httpx
\ No newline at end of file
diff --git a/setup.py b/setup.py
index a761dfc..7948448 100644
--- a/setup.py
+++ b/setup.py
@@ -5,9 +5,9 @@
 import sys
 
 
-if sys.version_info < (3, 8):
-    raise RuntimeError("skyflow requires Python 3.8+")
-current_version = '2.1.0'
+if sys.version_info < (3, 9):
+    raise RuntimeError("skyflow requires Python 3.9+")
+current_version = '2.1.0.dev0+2ce0f02'
 
 with open('README.md', 'r', encoding='utf-8') as f:
     long_description = f.read()
@@ -26,15 +26,15 @@
     install_requires=[
         'python_dateutil >= 2.5.3',
     	'setuptools >= 75.3.3',
-        'urllib3 >= 1.25.3, <= 2.6.3',
+        'urllib3 >= 1.25.3, < 3',
         'pydantic >= 2',
         'typing-extensions >= 4.7.1',
         'DateTime~=5.5',
-        'PyJWT~=2.9.0',
+        'PyJWT >= 2.12, < 3',
         'requests~=2.32.3',
         'coverage',
         'cryptography',
-        'python-dotenv~=1.0.1',
+        'python-dotenv >= 1.0, < 2',
         'httpx'
     ],
     extras_require={
@@ -43,5 +43,5 @@
             'ruff'
         ]
     },
-    python_requires=">=3.8",
+    python_requires=">=3.9",
 )
diff --git a/skyflow/utils/_version.py b/skyflow/utils/_version.py
index ed550f6..c56d424 100644
--- a/skyflow/utils/_version.py
+++ b/skyflow/utils/_version.py
@@ -1 +1 @@
-SDK_VERSION = '2.1.0'
+SDK_VERSION = '2.1.0.dev0+2ce0f02'
diff --git a/tests/service_account/test__utils.py b/tests/service_account/test__utils.py
index 856d26b..053a1c9 100644
--- a/tests/service_account/test__utils.py
+++ b/tests/service_account/test__utils.py
@@ -130,11 +130,25 @@ def test_get_service_account_token_missing_token_uri_key(self):
             get_service_account_token(CREDENTIALS_WITHOUT_TOKEN_URI, {}, None)
         self.assertEqual(context.exception.message, SkyflowMessages.Error.MISSING_TOKEN_URI.value)
 
-    def test_get_service_account_token_with_valid_credentials(self):
+    @patch("skyflow.service_account._utils.AuthClient")
+    @patch("skyflow.service_account._utils.get_signed_jwt")
+    def test_get_service_account_token_with_valid_credentials(self, mock_get_signed_jwt, mock_auth_client):
+        mock_get_signed_jwt.return_value = "signed"
+        mock_auth_api = mock_auth_client.return_value.get_auth_api.return_value
+        mock_auth_api.authentication_service_get_auth_token.return_value = type(
+            "obj", (), {"access_token": "mock_token", "token_type": "bearer"}
+        )
         access_token, _ = get_service_account_token(VALID_SERVICE_ACCOUNT_CREDS, {}, None)
         self.assertTrue(access_token)
 
-    def test_get_service_account_token_with_snake_case_creds(self):
+    @patch("skyflow.service_account._utils.AuthClient")
+    @patch("skyflow.service_account._utils.get_signed_jwt")
+    def test_get_service_account_token_with_snake_case_creds(self, mock_get_signed_jwt, mock_auth_client):
+        mock_get_signed_jwt.return_value = "signed"
+        mock_auth_api = mock_auth_client.return_value.get_auth_api.return_value
+        mock_auth_api.authentication_service_get_auth_token.return_value = type(
+            "obj", (), {"access_token": "mock_token", "token_type": "bearer"}
+        )
         access_token, _ = get_service_account_token(SNAKE_CASE_CREDS, {}, None)
         self.assertTrue(access_token)