diff --git a/environment.yml b/environment.yml
index 1e1c170..263b359 100644
--- a/environment.yml
+++ b/environment.yml
@@ -2,7 +2,7 @@ name: analysis-essentials
 channels:
   - conda-forge
 dependencies:
-  - python ~=3.12.0
+  - python ~=3.11.0
   - boost-histogram
   - hep_ml
   - hepunits