diff --git a/package_versions.txt b/package_versions.txt
index 3b23318..a0a61a2 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -121,7 +121,7 @@ sed4.4-2
 sensible-utils0.0.12
 sysvinit-utils2.88dsf-59.10ubuntu1
 tar1.29b-2ubuntu0.2
-tzdata2020f-0ubuntu0.18.04
+tzdata2021a-0ubuntu0.18.04
 ubuntu-keyring2018.09.18.1~18.04.0
 util-linux2.31.1-0.4ubuntu3.7
 zlib1g1:1.2.11.dfsg-0ubuntu2