diff --git a/environment.yml b/environment.yml
index d138535..b0a6a40 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,7 +7,7 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==1.0.3
-    - quantecon-book-theme==0.9.0
+    - quantecon-book-theme==0.10.0
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
     - sphinx-reredirects==0.1.4