diff --git a/srcpkgs/python-icalendar/template b/srcpkgs/python-icalendar/template
index 808cb8aa8ac..6ddb9fe23c9 100644
--- a/srcpkgs/python-icalendar/template
+++ b/srcpkgs/python-icalendar/template
@@ -1,6 +1,6 @@
 # Template file for 'python-icalendar'
 pkgname=python-icalendar
-version=3.12
+version=4.0.0
 revision=1
 wrksrc="icalendar-${version}"
 noarch=yes
@@ -13,7 +13,7 @@ maintainer="Oliver Kiddle <okiddle@yahoo.co.uk>"
 license="2-clause-BSD"
 homepage="http://icalendar.readthedocs.org/"
 distfiles="${PYPI_SITE}/i/icalendar/icalendar-${version}.tar.gz"
-checksum=ad401c93b64d8e98f1e98b4e6c96c0023a05f5984d3bfc23ce9448986edbca54
+checksum=367a48b779b9d19d3a59f681bd159897507d7013827f91265bfada2bfa48d749
 
 post_install() {
 	vlicense LICENSE.rst LICENSE