diff --git a/package_versions.txt b/package_versions.txt
index f7cb999..64eaa03 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -24,7 +24,7 @@ readline-8.0.1-r0
 scanelf-1.2.4-r0
 shadow-4.7-r1
 ssl_client-1.31.1-r10
-tzdata-2021a-r0
+tzdata-2021b-r0
 xz-5.2.4-r0
 xz-libs-5.2.4-r0
 zlib-1.2.11-r3