diff --git a/pyproject.toml b/pyproject.toml
index bd204ad3f..b9a065143 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ dependencies = [
     "django-tables2==2.8.0",
     "django-taggit==6.1.0",
     "django-weasyprint==2.4.0",
-    "icalendar==7.1.0",
+    "icalendar==7.1.1",
     "irc3==1.1.10",
     "lxml==6.1.0",
     "nh3==0.3.5",