diff --git a/environment.yml b/environment.yml
index 9ad2acd11..04ae0e482 100644
--- a/environment.yml
+++ b/environment.yml
@@ -24,6 +24,7 @@ dependencies:
     - scipy >=1.2
     - statsmodels
     - xarray >=2022.06.0,<2023.11.0
+    - yamale
     # Extras
     - eofs
     - flox
@@ -70,7 +71,6 @@ dependencies:
     - tox
 #    - tox-conda  # Will be added when a tox@v4.0+ compatible plugin is released.
     - xdoctest
-    - yamale
     - yamllint
     - pip
     - pip: