diff --git a/environment.yml b/environment.yml
index f69c4ec3..3eede68e 100644
--- a/environment.yml
+++ b/environment.yml
@@ -18,4 +18,5 @@ dependencies:
     - sphinx-togglebutton==0.3.2
     # Docker Requirements
     - pytz
+    - git+https://github.com/QuantEcon/QuantEcon.py@copilot/fix-589