diff --git a/package_versions.txt b/package_versions.txt
index 7e536dc..478e87a 100755
--- a/package_versions.txt
+++ b/package_versions.txt
@@ -8,7 +8,7 @@ bash4.4.18-2ubuntu1.2
 bsdmainutils11.1.2ubuntu1
 bsdutils1:2.31.1-0.4ubuntu3.7
 bzip21.0.6-8.1ubuntu0.2
-ca-certificates20211016~18.04.1
+ca-certificates20211016ubuntu0.18.04.1
 coreutils8.28-1ubuntu1
 cpp4:7.4.0-1ubuntu2.3
 cpp-77.5.0-3ubuntu1~18.04
@@ -248,7 +248,7 @@ libxft22.3.2-1
 libxi62:1.7.9-1
 libxinerama12:1.1.3-1
 libxkbfile11:1.0.9-2
-libxml22.9.4+dfsg1-6.1ubuntu1.7
+libxml22.9.4+dfsg1-6.1ubuntu1.8
 libxmu62:1.1.2-2
 libxmuu12:1.1.2-2
 libxpm41:3.5.12-1