diff --git a/requirements.txt b/requirements.txt
index 7ee9291..288ff01 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
 Flask>=0.10.1
 redis>=2.10.3
-oauth2client>=1.4.6
-google-api-python-client>=1.3.1
+oauth2client==1.4.6
+google-api-python-client==1.3.1
 numpy
 rpy2