diff --git a/OfficeBench/requirements.txt b/OfficeBench/requirements.txt
index 2e78df1..9c9d56c 100644
--- a/OfficeBench/requirements.txt
+++ b/OfficeBench/requirements.txt
@@ -103,7 +103,7 @@ lxml==5.3.0
 Markdown==3.7
 markdown-it-py==3.0.0
 MarkupSafe==3.0.2
-marshmallow==3.23.1
+marshmallow==3.26.2
 matplotlib==3.10.0
 matplotlib-inline 
 mdurl==0.1.2