diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
index c66d501146..92e6d9893c 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityRoleManager.cs
@@ -39,7 +39,7 @@ namespace Volo.Abp.Identity
             _cancellationTokenProvider = cancellationTokenProvider;
         }
 
-        public async Task<IdentityRole> GetByIdAsync(Guid id)
+        public virtual async Task<IdentityRole> GetByIdAsync(Guid id)
         {
             var role = await Store.FindByIdAsync(id.ToString(), CancellationToken);
             if (role == null)
diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserManager.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserManager.cs
index dc4b2fe4b2..0f732a8dd7 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserManager.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserManager.cs
@@ -43,7 +43,7 @@ namespace Volo.Abp.Identity
             _cancellationTokenProvider = cancellationTokenProvider;
         }
 
-        public async Task<IdentityUser> GetByIdAsync(Guid id)
+        public virtual async Task<IdentityUser> GetByIdAsync(Guid id)
         {
             var user = await Store.FindByIdAsync(id.ToString(), CancellationToken);
             if (user == null)
@@ -54,7 +54,7 @@ namespace Volo.Abp.Identity
             return user;
         }
 
-        public async Task<IdentityResult> SetRolesAsync([NotNull] IdentityUser user, [NotNull] IEnumerable<string> roleNames)
+        public virtual async Task<IdentityResult> SetRolesAsync([NotNull] IdentityUser user, [NotNull] IEnumerable<string> roleNames)
         {
             Check.NotNull(user, nameof(user));
             Check.NotNull(roleNames, nameof(roleNames));
diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserRepositoryExternalUserLookupServiceProvider.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserRepositoryExternalUserLookupServiceProvider.cs
index bbbebb81cd..cb380de5c7 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserRepositoryExternalUserLookupServiceProvider.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/IdentityUserRepositoryExternalUserLookupServiceProvider.cs
@@ -20,7 +20,7 @@ namespace Volo.Abp.Identity
             _lookupNormalizer = lookupNormalizer;
         }
 
-        public async Task<IUserData> FindByIdAsync(
+        public virtual async Task<IUserData> FindByIdAsync(
             Guid id, 
             CancellationToken cancellationToken = default)
         {
@@ -33,7 +33,7 @@ namespace Volo.Abp.Identity
             )?.ToAbpUserData();
         }
 
-        public async Task<IUserData> FindByUserNameAsync(
+        public virtual async Task<IUserData> FindByUserNameAsync(
             string userName, 
             CancellationToken cancellationToken = default)
         {
diff --git a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/UserRoleFinder.cs b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/UserRoleFinder.cs
index b168282526..d2de24a568 100644
--- a/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/UserRoleFinder.cs
+++ b/modules/identity/src/Volo.Abp.Identity.Domain/Volo/Abp/Identity/UserRoleFinder.cs
@@ -13,7 +13,7 @@ namespace Volo.Abp.Identity
             _identityUserRepository = identityUserRepository;
         }
 
-        public async Task<string[]> GetRolesAsync(Guid userId)
+        public virtual async Task<string[]> GetRolesAsync(Guid userId)
         {
             return (await _identityUserRepository.GetRoleNamesAsync(userId)).ToArray();
         }