diff --git a/requirements.doctools.txt b/requirements.doctools.txt
index 2ab52c6..716a8fa 100644
--- a/requirements.doctools.txt
+++ b/requirements.doctools.txt
@@ -1,3 +1,3 @@
-myst-parser==3.0.1
+myst-parser==4.0.0
 sphinxcontrib-mermaid==0.9.2
 sphinxcontrib.confluencebuilder==2.6.1
\ No newline at end of file