diff --git a/package_versions.txt b/package_versions.txt
index 882cd39..b33587c 100644
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -59,7 +59,7 @@ shadow-4.8.1-r0
 skalibs-2.10.0.0-r0
 sqlite-libs-3.34.1-r0
 ssl_client-1.32.1-r6
-tzdata-2021b-r0
+tzdata-2021c-r0
 utmps-0.1.0.0-r0
 xz-5.2.5-r0
 xz-libs-5.2.5-r0