diff --git a/requirements.txt b/requirements.txt
index 65b2c73f96..9de05c563d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -39,7 +39,7 @@ grpcio==1.58.0
 gunicorn==22.0.0
 hashids==1.3.1
 importlib-metadata==6.7.0
-iso8601==0.1.12
+iso8601==0.1.16
 isodate==0.6.1
 itsdangerous==2.1.2
 Jinja2==3.1.4