diff --git a/env.yml b/env.yml
index 8ee9f7d..ca56de8 100644
--- a/env.yml
+++ b/env.yml
@@ -35,7 +35,7 @@ dependencies:
   - ipywidgets
 
   # Doc
-  - mkdocs
+  - mkdocs <1.6.0
   - mkdocs-material >=7.1.1
   - mkdocs-material-extensions
   - mkdocstrings