diff --git a/scripts/update-tzdata.sh b/scripts/update-tzdata.sh
index 2fde5e6..d9a21ac 100755
--- a/scripts/update-tzdata.sh
+++ b/scripts/update-tzdata.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 
-VERSION=2023b
+VERSION=2024a
 WORKDIR=dist
 
 pushd $WORKDIR
@@ -13,4 +13,4 @@ echo "tzdata v$VERSION" >> SOURCE
 
 popd
 mv dist/timezone.snap.json tzdata/timezone.snap.json
-mv dist/SOURCE tzdata/SOURCE
\ No newline at end of file
+mv dist/SOURCE tzdata/SOURCE
diff --git a/tzdata/SOURCE b/tzdata/SOURCE
index 1ac802b..b930ac7 100644
--- a/tzdata/SOURCE
+++ b/tzdata/SOURCE
@@ -1,2 +1,2 @@
 https://github.com/evansiroky/timezone-boundary-builder
-tzdata v2023b
+tzdata v2024a
diff --git a/tzdata/timezone.snap.json b/tzdata/timezone.snap.json
index 7168f70..21cff05 100644
Binary files a/tzdata/timezone.snap.json and b/tzdata/timezone.snap.json differ