diff --git a/Dockerfile b/Dockerfile
index 4185c0b..9a3fc87 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -7,6 +7,7 @@ RUN localedef -i fr_FR -c -f UTF-8 -A /usr/share/locale/locale.alias fr_FR.UTF-8
 RUN apt update && apt install pgtop
 
 ENV LANG fr_FR.utf8
+ENV PURGE_OLD false
 
 ENTRYPOINT ["docker-entrypoint.sh"]
 
diff --git a/backup-database.sh b/backup-database.sh
index c8a6489..ae1a24b 100755
--- a/backup-database.sh
+++ b/backup-database.sh
@@ -6,6 +6,13 @@ fileDt=$(date '+%d_%m_%Y_%H_%M_%S');
 backUpFileName="postgres-backup-$fileDt.gz"
 backUpFilePath="$BACKUP_DESTINATION_FOLDER/$backUpFileName"
 
+if $PURGE_OLD; then DRY_RUN=false; else DRY_RUN=true; fi
+echo "Following file are older than 14 day, it will be deleted (dry-run $DRY_RUN)"
+find /var/lib/backup/ -type f -mtime +14 -name '*.gz' -execdir ls -- '{}' \;
+if [ $PURGE_OLD = true ]; then
+  find /var/lib/backup/ -type f -mtime +14 -name '*.gz' -execdir rm -- '{}' \;
+fi
+
 echo "$dt - Starting DB backup into file: $backUpFilePath";
 echo "$dt - Running: pg_dumpall -h $BACKUP_SOURCE_DB_HOST_NAME -U $POSTGRES_USER -c | gzip > $backUpFilePath"