diff --git a/srcpkgs/attic/template b/srcpkgs/attic/template
index 1299e36fa97..1ea6641252a 100644
--- a/srcpkgs/attic/template
+++ b/srcpkgs/attic/template
@@ -1,9 +1,9 @@
 # Template file for 'attic'
 pkgname=attic
 version=0.16
-revision=22
+revision=23
 build_style=python3-module
-hostmakedepends="python3-setuptools python3-Cython python3-Sphinx"
+hostmakedepends="python3-setuptools python3-Cython python3-Sphinx python3-pytz"
 makedepends="python3-devel openssl-devel acl-devel"
 depends="python3-msgpack python3-llfuse"
 short_desc="Deduplicating backup program for efficient and secure backups"