diff --git a/lang/Lang.go b/lang/Lang.go
index 08865a8..3ecca72 100644
--- a/lang/Lang.go
+++ b/lang/Lang.go
@@ -12,8 +12,6 @@ import (
 	"os"
 	"strings"
 	"unsafe"
-
-	"github.com/tursom/GoCollections/exceptions"
 )
 
 type TypeCastException struct {
@@ -83,10 +81,6 @@ func ForceCast[T any](v unsafe.Pointer) *T {
 	}
 }
 
-func (t *TypeCastException) Cause() exceptions.Exception {
-	return nil
-}
-
 func (t *TypeCastException) Error() string {
 	return fmt.Sprintf("TypeCastException: %s\ncause by: %s", t.message, t.cause)
 }