diff --git a/doc/requirements.txt b/doc/requirements.txt
index db1db0dedac..652e5b77caf 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -6,4 +6,5 @@ sphinx==4.3.0
 sphinx_rtd_theme==1.0.0
 sphinxcontrib-httpdomain==1.8.0
 sphinxcontrib-openapi==0.7.0
-configobj==5.0.6
\ No newline at end of file
+configobj==5.0.6
+mistune==0.8.4  # sphinxcontrib-openapi==0.7.0 cannot work with the latest mistune version (2.0.0)