diff --git a/mkdocs.yml b/mkdocs.yml
index 70ffbdac..bc548c14 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -26,7 +26,7 @@ markdown_extensions:
   - footnotes
 
 extra:
-  guideline_version: 4.0-SNAPSHOT
+  guideline_version: 3.6
   social:
     - type: github-alt
       link: https://github.com/Trivadis