diff --git a/setup.py b/setup.py
index 5fe92052..5c725872 100644
--- a/setup.py
+++ b/setup.py
@@ -46,10 +46,10 @@ install_requires = [
 
 tests_require = [
     'pyflakes',
-    'moto',
-    'nose',
-    'pytest',
-    'pytest-flask'
+    'moto=0.4.6',
+    'nose=1.3.7',
+    'pytest=2.7.2',
+    'pytest-flask=0.8.1'
 ]
 
 docs_require = [