diff --git a/server/requirements.txt b/server/requirements.txt
index 18ff0f31..cce14749 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -6,10 +6,10 @@ Flask-Compress>=1.4.0
 Flask-Cors>=3.0.6
 Flask-RESTful>=0.3.6
 flatbuffers>=1.10.0
+scanpy>=1.3.7
 matplotlib>=2.2
 numpy>=1.15.2
 pandas>=0.23.1
-scanpy>=1.3.7
 scipy>=1.1.0
 scikit-learn>=0.19.1,!=0.20.0
 tables==3.5.1