diff --git a/environment.yml b/environment.yml
index f69c4ec3..687f9d24 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,7 +7,7 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==1.0.3
-    - quantecon-book-theme==0.7.6
+    - git+https://github.com/QuantEcon/quantecon-book-theme@kp992-patch-1
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-reredirects==0.1.4