diff --git a/callback_update.go b/callback_update.go
index f6ba0ffd..c52162c8 100644
--- a/callback_update.go
+++ b/callback_update.go
@@ -75,7 +75,7 @@ func updateCallback(scope *Scope) {
 		} else {
 			for _, field := range scope.Fields() {
 				if scope.changeableField(field) {
-					if !field.IsPrimaryKey && field.IsNormal {
+					if !field.IsPrimaryKey && field.IsNormal && (field.Name != "CreatedAt" || !field.IsBlank) {
 						if !field.IsForeignKey || !field.IsBlank || !field.HasDefaultValue {
 							sqls = append(sqls, fmt.Sprintf("%v = %v", scope.Quote(field.DBName), scope.AddToVars(field.Field.Interface())))
 						}