diff --git a/environments/environment_wp4.yml b/environments/environment_wp4.yml
index 87d08b9..d7ba653 100644
--- a/environments/environment_wp4.yml
+++ b/environments/environment_wp4.yml
@@ -3,6 +3,7 @@ channels:
 - nodefaults
 dependencies:
 - pip
+- icclim
 - scipy
 - xarrayMannKendall
 - pip: