diff --git a/docs/requirements-doc.txt b/docs/requirements-doc.txt
index d768838..9a27700 100644
--- a/docs/requirements-doc.txt
+++ b/docs/requirements-doc.txt
@@ -1,3 +1,3 @@
-myst-parser~=5.0
+myst-parser~=4.0
 Sphinx~=9.0
 sphinx-rtd-theme~=3.1