diff --git a/environment.yml b/environment.yml
index 6c9ceb13..9904a283 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,7 +6,7 @@ channels:
 dependencies:
   - python>=3.6
   - ipython
-  - ocp
+  - ocp=7.4
   - pyparsing
   - sphinx=3.2.1
   - sphinx_rtd_theme