diff --git a/environment.devenv.yml b/environment.devenv.yml
index c611e29b..f8ff9f6c 100644
--- a/environment.devenv.yml
+++ b/environment.devenv.yml
@@ -1,6 +1,6 @@
 name: optima
 
-{% set python_version = os.environ.get("PY_VER", "3.11") %}
+{% set python_version = os.environ.get("PY_VER", "3.10") %}
 
 channels:
   - conda-forge