diff --git a/package_versions.txt b/package_versions.txt
index 00be191..048664f 100644
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -113,7 +113,7 @@ skalibs-2.10.0.0-r0
 soxr-0.1.3-r2
 sqlite-libs-3.34.1-r0
 ssl_client-1.32.1-r6
-tzdata-2021b-r0
+tzdata-2021c-r0
 unrar-6.0.3-r0
 unzip-6.0-r9
 utmps-0.1.0.0-r0