diff --git a/ox3apiclient/__init__.py b/ox3apiclient/__init__.py
index 0319ae7..207d31d 100644
--- a/ox3apiclient/__init__.py
+++ b/ox3apiclient/__init__.py
@@ -12,7 +12,7 @@
 import requests
 from requests_oauthlib import OAuth1
 
-__version__ = '0.6.1'
+__version__ = '0.6.2'
 
 REQUEST_TOKEN_URL = 'https://sso.openx.com/api/index/initiate'
 ACCESS_TOKEN_URL = 'https://sso.openx.com/api/index/token'
diff --git a/requirements/dev.txt b/requirements/dev.txt
index 81b9bca..e4af446 100644
--- a/requirements/dev.txt
+++ b/requirements/dev.txt
@@ -1,5 +1,5 @@
-mock
-nose
-requests
-requests-oauthlib
-six
+mock==4.0.3
+nose==1.3.7
+requests==2.26.0
+requests-oauthlib==1.3.0
+six==1.16.0
diff --git a/setup.py b/setup.py
index ade1114..5a2cc17 100755
--- a/setup.py
+++ b/setup.py
@@ -26,7 +26,7 @@ def read_file(name):
     long_description_content_type="text/markdown",
     packages=find_packages(),
     zip_safe=True,
-    install_requires=['six','requests_oauthlib'],
+    install_requires=['six==2.26.0', 'requests_oauthlib==1.3.0'],
     classifiers=[
         'Environment :: Console',
         'Environment :: Web Environment',
@@ -44,7 +44,7 @@ def read_file(name):
     ],
     test_suite='nose.collector',
     tests_require=[
-        'nose',
+        'nose==1.3.7',
         'mock; python_version < "3.3"'
     ]
 )