diff --git a/env.yml b/env.yml
index abb4de0..277a4ce 100644
--- a/env.yml
+++ b/env.yml
@@ -25,7 +25,7 @@ dependencies:
   - pyspng==0.1.0
   - networkx
   - scipy
-  - ninja
+#  - ninja
   - torch==1.8.0+cu111
   - torchvision==0.9.0+cu111
   - torchaudio==0.8.0