diff --git a/environment.yml b/environment.yml
index 1733c977..b30bf44a 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,12 +7,18 @@ dependencies:
   - pip
   - pip:
     - jupyter-book==1.0.3
-    - quantecon-book-theme==0.7.6
+    - quantecon-book-theme==0.8.2
     - sphinx-tojupyter==0.3.0
     - sphinxext-rediraffe==0.2.7
+    - sphinx-reredirects==0.1.4
     - sphinx-exercise==1.0.1
-    - ghp-import==2.1.0
-    - sphinxcontrib-youtube==1.3.0  #Version 1.3.0 is required as quantecon-book-theme is only compatible with sphinx<=5
+    - sphinx-proof==0.2.1
+    - ghp-import==1.1.0
+    - sphinxcontrib-youtube==1.3.0 #Version 1.3.0 is required as quantecon-book-theme is only compatible with sphinx<=5
     - sphinx-togglebutton==0.3.2
-
+    # Docker Requirements
+    - pytz
+    # Author Requirements
+    - jupyterlab-myst
+    - jupytext