diff --git a/disk_usage.go b/disk_usage.go
index 0377e08..fe8063a 100644
--- a/disk_usage.go
+++ b/disk_usage.go
@@ -63,7 +63,7 @@ func (m *diskUsageCache) check(need int64) error {
 		return fmt.Errorf("get disk usage fail, mount_point= %s, %w", m.mountPoint, err)
 	}
 
-	m.freeSpace = int64(usage.Available())
+	m.freeSpace = usage.Available()
 	m.used = need
 	if m.used > m.freeSpace {
 		return fmt.Errorf("%w, want= %d have= %d", ErrTargetNoSpace, m.used, m.freeSpace)
diff --git a/go.mod b/go.mod
index 241f8dd..81428fa 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ require (
 	github.com/moby/sys/mountinfo v0.6.2
 	github.com/modern-go/reflect2 v1.0.2
 	github.com/samber/lo v1.38.1
-	github.com/samuelncui/godf v0.0.0-20230927093204-37ea5acb9fc1
+	github.com/samuelncui/godf v0.0.0-20231004032257-e436410ad5a0
 	github.com/schollz/progressbar/v3 v3.13.1
 	github.com/sirupsen/logrus v1.9.3
 )