Bot Updating Package Versions

package_versions.txt

@@ -56,7 +56,7 @@ libcurl47.58.0-2ubuntu3.16
 libdb5.35.3.28-13.1ubuntu1.1
 libdebconfclient00.213ubuntu1
 liberror-perl0.17025-1
-libexpat12.2.5-3ubuntu0.4
+libexpat12.2.5-3ubuntu0.7
 libext2fs21.44.1-1ubuntu1.3
 libfdisk12.31.1-0.4ubuntu3.7
 libffi63.2.1-8
@@ -161,6 +161,6 @@ ubuntu-keyring2018.09.18.1~18.04.2
 unzip6.0-21ubuntu1.1
 util-linux2.31.1-0.4ubuntu3.7
 xz-utils5.2.2-1.3
-yarn1.22.17-1
+yarn1.22.18-1
 zip3.0-11build1
 zlib1g1:1.2.11.dfsg-0ubuntu2