diff --git a/fragments/labels/marathon.sh b/fragments/labels/marathon.sh
index 75f5799..c45c597 100644
--- a/fragments/labels/marathon.sh
+++ b/fragments/labels/marathon.sh
@@ -2,6 +2,7 @@ marathon)
     name="Marathon"
     type="dmg"
     archiveName="Marathon-[0-9.]*-Mac.dmg"
+    versionKey="CFBundleVersion"
     downloadURL="$(downloadURLFromGit Aleph-One-Marathon alephone)"
     appNewVersion="$(versionFromGit Aleph-One-Marathon alephone)"
     expectedTeamID="E8K89CXZE7"
diff --git a/fragments/labels/marathon2.sh b/fragments/labels/marathon2.sh
index 02440fa..64114eb 100644
--- a/fragments/labels/marathon2.sh
+++ b/fragments/labels/marathon2.sh
@@ -2,6 +2,7 @@ marathon2)
     name="Marathon 2"
     type="dmg"
     archiveName="Marathon2-[0-9.]*-Mac.dmg"
+    versionKey="CFBundleVersion"
     downloadURL="$(downloadURLFromGit Aleph-One-Marathon alephone)"
     appNewVersion="$(versionFromGit Aleph-One-Marathon alephone)"
     expectedTeamID="E8K89CXZE7"
diff --git a/fragments/labels/marathoninfinity.sh b/fragments/labels/marathoninfinity.sh
index a9b5165..388fbb9 100644
--- a/fragments/labels/marathoninfinity.sh
+++ b/fragments/labels/marathoninfinity.sh
@@ -2,6 +2,7 @@ marathoninfinity)
     name="Marathon Infinity"
     type="dmg"
     archiveName="MarathonInfinity-[0-9.]*-Mac.dmg"
+    versionKey="CFBundleVersion"
     downloadURL="$(downloadURLFromGit Aleph-One-Marathon alephone)"
     appNewVersion="$(versionFromGit Aleph-One-Marathon alephone)"
     expectedTeamID="E8K89CXZE7"