diff --git a/requirements.txt b/requirements.txt
index f6ff7b8..deda4b8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,7 +6,7 @@ django-google-fonts==0.0.3
 django-ninja==1.3.0
 django==5.1.4
 google-cloud-logging==3.11.3
-icalendar==6.1.0
+icalendar==6.1.1
 jdcal==1.4.1
 Jinja2==3.1.4               # Typogrify imports this even though we're not using it
 newrelic==10.4.0