diff --git a/framework/src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/PermissionChecker.cs b/framework/src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/PermissionChecker.cs
index 75d6af1fb9..4a5e48c220 100644
--- a/framework/src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/PermissionChecker.cs
+++ b/framework/src/Volo.Abp.Authorization/Volo/Abp/Authorization/Permissions/PermissionChecker.cs
@@ -92,12 +92,12 @@ public class PermissionChecker : IPermissionChecker, ITransientDependency
         return isGranted;
     }
 
-    public async Task<MultiplePermissionGrantResult> IsGrantedAsync(string[] names)
+    public virtual async Task<MultiplePermissionGrantResult> IsGrantedAsync(string[] names)
     {
         return await IsGrantedAsync(PrincipalAccessor.Principal, names);
     }
 
-    public async Task<MultiplePermissionGrantResult> IsGrantedAsync(ClaimsPrincipal? claimsPrincipal, string[] names)
+    public virtual async Task<MultiplePermissionGrantResult> IsGrantedAsync(ClaimsPrincipal? claimsPrincipal, string[] names)
     {
         Check.NotNull(names, nameof(names));