diff --git a/server/dao/resource.go b/server/dao/resource.go
index 478b57e..9df0c92 100644
--- a/server/dao/resource.go
+++ b/server/dao/resource.go
@@ -57,9 +57,18 @@ func GetResourceList(page, pageSize int) ([]model.Resource, int, error) {
 
 func UpdateResource(r model.Resource) error {
 	// Update a resource in the database
+	r1 := r
+	r.Images = nil
+	r.Tags = nil
 	if err := db.Save(&r).Error; err != nil {
 		return err
 	}
+	if err := db.Model(&r1).Association("Images").Replace(r.Images); err != nil {
+		return err
+	}
+	if err := db.Model(&r1).Association("Tags").Replace(r.Tags); err != nil {
+		return err
+	}
 	return nil
 }