diff --git a/server/requirements.txt b/server/requirements.txt
index 6d7fa098..046c2ac6 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -1,4 +1,4 @@
-anndata
+anndata==0.6.10
 Flask==0.12.4
 Flask-Caching==1.4.0
 Flask-Compress==1.4.0