diff --git a/config/ift-env.yaml b/config/ift-env.yaml
index 086cc939..6f766ad4 100644
--- a/config/ift-env.yaml
+++ b/config/ift-env.yaml
@@ -4,4 +4,4 @@ channels:
   - conda-forge
 
 dependencies:
-  - cylc-flow=8.3
+  - cylc-flow=8.2.1