diff --git a/postgresql_backup/pg_backup.sh b/postgresql_backup/pg_backup.sh
index 05e8a48..8c2e6d7 100644
--- a/postgresql_backup/pg_backup.sh
+++ b/postgresql_backup/pg_backup.sh
@@ -57,14 +57,14 @@ for PREFIX in $DATABASE_PREFIXES; do
 
     # Set backup file path within the server-specific directory
     BACKUP_FILE="$SERVER_DIR/$DB_NAME.$EXTENSION"
-    
+
     echo "Dumping '$DB_NAME' on $HOST:$PORT to $BACKUP_FILE"
 
     # Perform the backup based on the specified format
     if [[ "$DUMP_FORMAT" == "custom" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:21" "$DB_NAME" -f "$BACKUP_FILE"
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" -Fc --compress="zstd:$ZSTD_LEVEL" "$DB_NAME" -f "$BACKUP_FILE"
     elif [[ "$DUMP_FORMAT" == "sql" ]]; then
-      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -9 > "$BACKUP_FILE"
+      pg_dump -h "$HOST" -p "$PORT" -U "$USER" "$DB_NAME" | gzip -$GZIP_LEVEL > "$BACKUP_FILE"
     else
       echo "Invalid DUMP_FORMAT for $PREFIX: $DUMP_FORMAT. Skipping..."
       continue