diff --git a/extra/tzdata/checksums b/extra/tzdata/checksums
index fb4b3b5f..6d2ed96e 100644
--- a/extra/tzdata/checksums
+++ b/extra/tzdata/checksums
@@ -1 +1 @@
-66131180265979b62fb2e62030a5dee57c7acafc198f3a57121d8ccc3f593f0657
+10b9bcb12c6221bc6d86a81b2f43b241efb187ac68408efc4406070e5a9349c833
diff --git a/extra/tzdata/sources b/extra/tzdata/sources
index fd8e2941..575ea333 100644
--- a/extra/tzdata/sources
+++ b/extra/tzdata/sources
@@ -1 +1 @@
-https://github.com/eggert/tz/archive/2023d.tar.gz
+https://github.com/eggert/tz/archive/2024a.tar.gz
diff --git a/extra/tzdata/version b/extra/tzdata/version
index d8bc9a13..8dd8de6e 100644
--- a/extra/tzdata/version
+++ b/extra/tzdata/version
@@ -1 +1 @@
-2023d 1
+2024a 1