diff --git a/requirementsDocs.txt b/requirementsDocs.txt
index cad0f13..5659547 100644
--- a/requirementsDocs.txt
+++ b/requirementsDocs.txt
@@ -1,4 +1,4 @@
-sphinx==2.0.1
+sphinx==3.4.0
 sphinxcontrib-plantuml==0.16.1
 sphinx_rtd_theme==0.4.3
 PyYAML>=4.2b1