diff --git a/environment-dev.yml b/environment-dev.yml
index f67bdda..c63e522 100644
--- a/environment-dev.yml
+++ b/environment-dev.yml
@@ -8,4 +8,4 @@ dependencies:
 - psutil
 - pip:
   - flask-api
-  - cellxgene
+  - cellxgene==0.14.1
diff --git a/requirements.txt b/requirements.txt
index 19bb2ef..1528cbd 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-cellxgene
+cellxgene==0.14.1
 flask
 flask_api
 psutil