diff --git a/version-lookup.sh b/version-lookup.sh
index 1780cc9..6a4d170 100755
--- a/version-lookup.sh
+++ b/version-lookup.sh
@@ -50,7 +50,7 @@ if [[ -z "${current_version:-}" ]] ; then
             current_version="0.0.0"
         ;;
         calver)
-            current_version="$(date '+%Y.%-m.0')"
+            current_version="$(date '+%Y.%-m.1')"
         ;;
     esac
 fi