diff --git a/requirements.txt b/requirements.txt
index f792c5ab..548f916a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ PyGithub~=1.58
 GitPython~=3.1
 
 # Markdown visualization modules:
-pytz~=2022.7
+pytz~=2023.3
 humanize~=4.6
 
 # Graphs drawing modules: