diff --git a/rascil/conda_build_config.yaml b/rascil/conda_build_config.yaml
index 96b4291..dfa245e 100644
--- a/rascil/conda_build_config.yaml
+++ b/rascil/conda_build_config.yaml
@@ -1,6 +1,5 @@
 python:
   - 3.9
   - 3.10
-  - 3.11
-
+