diff --git a/environments/analysis3/environment.yml b/environments/analysis3/environment.yml
index b3110e2..fd939c7 100644
--- a/environments/analysis3/environment.yml
+++ b/environments/analysis3/environment.yml
@@ -291,5 +291,6 @@ dependencies:
 - u8darts-all
 - xwrf
 - ecmwf-api-client
+- pygamma_n
 - pip:
   - railroad-diagrams ### Unlisted dependency of pip and pyparsing