diff --git a/package_versions.txt b/package_versions.txt
index 1f8b6f27..772212ad 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -487,7 +487,7 @@ systemd-sysv244.3-1ubuntu1
 sysvinit-utils2.96-1ubuntu1
 tar1.30+dfsg-6
 terminator1.91-4ubuntu1
-tzdata2019c-3ubuntu1
+tzdata2020a-0ubuntu0.20.04
 ubuntu-keyring2018.09.18.1
 ubuntu-mono19.04-0ubuntu3
 ucf3.0038+nmu1