diff --git a/package_versions.txt b/package_versions.txt
index 49a4910..82df108 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -34,7 +34,7 @@ readline-8.0.4-r0
 scanelf-1.2.6-r0
 shadow-4.8.1-r0
 ssl_client-1.31.1-r20
-tzdata-2021b-r0
+tzdata-2021c-r0
 xz-5.2.5-r0
 xz-libs-5.2.5-r0
 zlib-1.2.11-r3