diff --git a/package_versions.txt b/package_versions.txt
index fa0337d..3d12618 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -27,7 +27,7 @@ readline-8.0.4-r0
 scanelf-1.2.6-r0
 shadow-4.8.1-r0
 ssl_client-1.31.1-r19
-tzdata-2020f-r0
+tzdata-2021a-r0
 xz-5.2.5-r0
 xz-libs-5.2.5-r0
 zlib-1.2.11-r3