diff --git a/environment.yml b/environment.yml
index e6c4b7e692..ae279401c5 100644
--- a/environment.yml
+++ b/environment.yml
@@ -23,3 +23,8 @@ dependencies:
     - ambient-api
     - sage-data-client
     - nexradaws
+    - sphinxcontrib-applehelp==1.0.7
+    - sphinxcontrib-devhelp==1.0.5
+    - sphinxcontrib-htmlhelp==2.0.4
+    - sphinxcontrib-qthelp==1.0.6
+    - sphinxcontrib-serializinghtml==1.1.9