diff --git a/environment.yml b/environment.yml
index 5e6a594607..7c8f397e74 100644
--- a/environment.yml
+++ b/environment.yml
@@ -32,6 +32,6 @@ dependencies:
   - seaborn
   - ctapipe_io_lst=0.22
   - pytest
+  - pyirf=0.8
   - pip:
       - ctaplot~=0.6.2
-      - pyirf~=0.8.0