diff --git a/requirements.txt b/requirements.txt
index 2024cf92..c049fd56 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -42,7 +42,7 @@ pylab
 pyparsing==2.0.1
 PyPDF2==1.22
 pytest==3.0.5
-pytz==2015.7
+pytz==2023.3
 qrcode
 reportlab==3.1.8
 requests==2.9.1