diff --git a/requirements.txt b/requirements.txt
index b19131b0..8670a2f9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,24 +1,25 @@
-google-api-python-client==1.6.1
-httplib2==0.9.2
-lxml==3.7.2
-oauth2client==4.0.0
-pyasn1==0.1.9
-pyasn1-modules==0.0.8
-PyDrive==1.3.1
-PyYAML==3.12
-rsa==3.4.2
-six==1.10.0
-uritemplate==3.0.0
 Babel>=1.3
-Flask>=0.11
 Flask-Babel==0.11.1
 Flask-Login>=0.3.2
 Flask-Principal>=0.3.2
+Flask>=0.11
+gevent==1.2.1
+google-api-python-client==1.6.1
+greenlet==0.4.12
+httplib2==0.9.2
 iso-639>=0.4.5
+lxml==3.7.2
+oauth2client==4.0.0
+pyasn1-modules==0.0.8
+pyasn1==0.1.9
+PyDrive==1.3.1
 PyPDF2==1.26.0
 pytz>=2016.10
+PyYAML==3.12
 requests>=2.11.1
+rsa==3.4.2
+six==1.10.0
 SQLAlchemy>=0.8.4
 tornado>=4.1
-Wand>=0.4.4
-#future
+uritemplate==3.0.0
+Wand>=0.4.4
\ No newline at end of file