diff --git a/extra/tzdata/sources b/extra/tzdata/sources
index 2421adff..ef6466ba 100644
--- a/extra/tzdata/sources
+++ b/extra/tzdata/sources
@@ -1 +1 @@
-https://github.com/eggert/tz/archive/2021a.tar.gz
+https://github.com/eggert/tz/archive/VERSION.tar.gz