diff --git a/bitwarden_license/src/Scim/Startup.cs b/bitwarden_license/src/Scim/Startup.cs
index 3fac669eda..edbbf34aea 100644
--- a/bitwarden_license/src/Scim/Startup.cs
+++ b/bitwarden_license/src/Scim/Startup.cs
@@ -8,7 +8,7 @@ using Bit.Core.Utilities;
using Bit.Scim.Context;
using Bit.Scim.Utilities;
using Bit.SharedWeb.Utilities;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.Extensions.DependencyInjection.Extensions;
using Stripe;
diff --git a/bitwarden_license/src/Scim/Utilities/ApiKeyAuthenticationHandler.cs b/bitwarden_license/src/Scim/Utilities/ApiKeyAuthenticationHandler.cs
index 4e7e7ceb7a..6ebffb73cd 100644
--- a/bitwarden_license/src/Scim/Utilities/ApiKeyAuthenticationHandler.cs
+++ b/bitwarden_license/src/Scim/Utilities/ApiKeyAuthenticationHandler.cs
@@ -3,7 +3,7 @@ using System.Text.Encodings.Web;
using Bit.Core.Enums;
using Bit.Core.Repositories;
using Bit.Scim.Context;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Options;
diff --git a/bitwarden_license/src/Sso/Controllers/AccountController.cs b/bitwarden_license/src/Sso/Controllers/AccountController.cs
index f41d2d3c65..ada6b20c29 100644
--- a/bitwarden_license/src/Sso/Controllers/AccountController.cs
+++ b/bitwarden_license/src/Sso/Controllers/AccountController.cs
@@ -19,10 +19,10 @@ using Bit.Core.Tokens;
using Bit.Core.Utilities;
using Bit.Sso.Models;
using Bit.Sso.Utilities;
+using Duende.IdentityModel;
using Duende.IdentityServer;
using Duende.IdentityServer.Services;
using Duende.IdentityServer.Stores;
-using IdentityModel;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
diff --git a/bitwarden_license/src/Sso/Utilities/DynamicAuthenticationSchemeProvider.cs b/bitwarden_license/src/Sso/Utilities/DynamicAuthenticationSchemeProvider.cs
index 8bde8f84a1..804a323109 100644
--- a/bitwarden_license/src/Sso/Utilities/DynamicAuthenticationSchemeProvider.cs
+++ b/bitwarden_license/src/Sso/Utilities/DynamicAuthenticationSchemeProvider.cs
@@ -7,9 +7,9 @@ using Bit.Core.Settings;
using Bit.Core.Utilities;
using Bit.Sso.Models;
using Bit.Sso.Utilities;
+using Duende.IdentityModel;
using Duende.IdentityServer;
using Duende.IdentityServer.Infrastructure;
-using IdentityModel;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.Extensions.Options;
diff --git a/src/Api/Startup.cs b/src/Api/Startup.cs
index a341257259..5849bfb634 100644
--- a/src/Api/Startup.cs
+++ b/src/Api/Startup.cs
@@ -5,7 +5,7 @@ using Bit.Core.Settings;
using AspNetCoreRateLimit;
using Stripe;
using Bit.Core.Utilities;
-using IdentityModel;
+using Duende.IdentityModel;
using System.Globalization;
using Bit.Api.AdminConsole.Models.Request.Organizations;
using Bit.Api.Auth.Models.Request;
diff --git a/src/Core/Core.csproj b/src/Core/Core.csproj
index ff5e929f18..8a8de3d77d 100644
--- a/src/Core/Core.csproj
+++ b/src/Core/Core.csproj
@@ -52,7 +52,7 @@
-
+
diff --git a/src/Core/Services/Implementations/LicensingService.cs b/src/Core/Services/Implementations/LicensingService.cs
index dd603b4b63..8ecd337a16 100644
--- a/src/Core/Services/Implementations/LicensingService.cs
+++ b/src/Core/Services/Implementations/LicensingService.cs
@@ -12,7 +12,7 @@ using Bit.Core.Models.Business;
using Bit.Core.Repositories;
using Bit.Core.Settings;
using Bit.Core.Utilities;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.Hosting;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
diff --git a/src/Core/Utilities/CoreHelpers.cs b/src/Core/Utilities/CoreHelpers.cs
index af985914c6..d7fe51cfb6 100644
--- a/src/Core/Utilities/CoreHelpers.cs
+++ b/src/Core/Utilities/CoreHelpers.cs
@@ -18,7 +18,7 @@ using Bit.Core.Context;
using Bit.Core.Entities;
using Bit.Core.Identity;
using Bit.Core.Settings;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.DataProtection;
using MimeKit;
diff --git a/src/Events/Startup.cs b/src/Events/Startup.cs
index 57af285b03..a9be60ce8a 100644
--- a/src/Events/Startup.cs
+++ b/src/Events/Startup.cs
@@ -6,7 +6,7 @@ using Bit.Core.Services;
using Bit.Core.Settings;
using Bit.Core.Utilities;
using Bit.SharedWeb.Utilities;
-using IdentityModel;
+using Duende.IdentityModel;
namespace Bit.Events;
diff --git a/src/Identity/Controllers/SsoController.cs b/src/Identity/Controllers/SsoController.cs
index f3dc301a61..d377573c7e 100644
--- a/src/Identity/Controllers/SsoController.cs
+++ b/src/Identity/Controllers/SsoController.cs
@@ -5,9 +5,9 @@ using Bit.Core.Entities;
using Bit.Core.Models.Api;
using Bit.Core.Repositories;
using Bit.Identity.Models;
+using Duende.IdentityModel;
using Duende.IdentityServer;
using Duende.IdentityServer.Services;
-using IdentityModel;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Localization;
using Microsoft.AspNetCore.Mvc;
diff --git a/src/Identity/IdentityServer/ApiResources.cs b/src/Identity/IdentityServer/ApiResources.cs
index f969d67908..364cbf8619 100644
--- a/src/Identity/IdentityServer/ApiResources.cs
+++ b/src/Identity/IdentityServer/ApiResources.cs
@@ -1,7 +1,7 @@
using Bit.Core.Identity;
using Bit.Core.IdentityServer;
+using Duende.IdentityModel;
using Duende.IdentityServer.Models;
-using IdentityModel;
namespace Bit.Identity.IdentityServer;
diff --git a/src/Identity/IdentityServer/ClientStore.cs b/src/Identity/IdentityServer/ClientStore.cs
index c204e364ce..23942e6cd2 100644
--- a/src/Identity/IdentityServer/ClientStore.cs
+++ b/src/Identity/IdentityServer/ClientStore.cs
@@ -12,9 +12,9 @@ using Bit.Core.SecretsManager.Repositories;
using Bit.Core.Services;
using Bit.Core.Settings;
using Bit.Core.Utilities;
+using Duende.IdentityModel;
using Duende.IdentityServer.Models;
using Duende.IdentityServer.Stores;
-using IdentityModel;
namespace Bit.Identity.IdentityServer;
diff --git a/src/Identity/IdentityServer/RequestValidators/CustomTokenRequestValidator.cs b/src/Identity/IdentityServer/RequestValidators/CustomTokenRequestValidator.cs
index 597d5257e2..a7c6449ff6 100644
--- a/src/Identity/IdentityServer/RequestValidators/CustomTokenRequestValidator.cs
+++ b/src/Identity/IdentityServer/RequestValidators/CustomTokenRequestValidator.cs
@@ -11,10 +11,10 @@ using Bit.Core.Platform.Installations;
using Bit.Core.Repositories;
using Bit.Core.Services;
using Bit.Core.Settings;
+using Duende.IdentityModel;
using Duende.IdentityServer.Extensions;
using Duende.IdentityServer.Validation;
using HandlebarsDotNet;
-using IdentityModel;
using Microsoft.AspNetCore.Identity;
#nullable enable
diff --git a/src/Notifications/Startup.cs b/src/Notifications/Startup.cs
index 440808b78b..c939d0d2fd 100644
--- a/src/Notifications/Startup.cs
+++ b/src/Notifications/Startup.cs
@@ -3,7 +3,7 @@ using Bit.Core.IdentityServer;
using Bit.Core.Settings;
using Bit.Core.Utilities;
using Bit.SharedWeb.Utilities;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.SignalR;
using Microsoft.IdentityModel.Logging;
diff --git a/src/Notifications/SubjectUserIdProvider.cs b/src/Notifications/SubjectUserIdProvider.cs
index 261394d06c..6f8e15cc3c 100644
--- a/src/Notifications/SubjectUserIdProvider.cs
+++ b/src/Notifications/SubjectUserIdProvider.cs
@@ -1,4 +1,4 @@
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.SignalR;
namespace Bit.Notifications;
diff --git a/src/SharedWeb/Utilities/ServiceCollectionExtensions.cs b/src/SharedWeb/Utilities/ServiceCollectionExtensions.cs
index 85bd014c91..144ea1f036 100644
--- a/src/SharedWeb/Utilities/ServiceCollectionExtensions.cs
+++ b/src/SharedWeb/Utilities/ServiceCollectionExtensions.cs
@@ -50,7 +50,7 @@ using Bit.Core.Vault.Services;
using Bit.Infrastructure.Dapper;
using Bit.Infrastructure.EntityFramework;
using DnsClient;
-using IdentityModel;
+using Duende.IdentityModel;
using LaunchDarkly.Sdk.Server;
using LaunchDarkly.Sdk.Server.Interfaces;
using Microsoft.AspNetCore.Authentication.Cookies;
diff --git a/test/Core.Test/Utilities/CoreHelpersTests.cs b/test/Core.Test/Utilities/CoreHelpersTests.cs
index 264a55b6ee..d006df536b 100644
--- a/test/Core.Test/Utilities/CoreHelpersTests.cs
+++ b/test/Core.Test/Utilities/CoreHelpersTests.cs
@@ -9,7 +9,7 @@ using Bit.Core.Test.AutoFixture.UserFixtures;
using Bit.Core.Utilities;
using Bit.Test.Common.AutoFixture;
using Bit.Test.Common.AutoFixture.Attributes;
-using IdentityModel;
+using Duende.IdentityModel;
using Microsoft.AspNetCore.DataProtection;
using Xunit;
diff --git a/test/Identity.IntegrationTest/Endpoints/IdentityServerSsoTests.cs b/test/Identity.IntegrationTest/Endpoints/IdentityServerSsoTests.cs
index 0189032c24..602d5cfe48 100644
--- a/test/Identity.IntegrationTest/Endpoints/IdentityServerSsoTests.cs
+++ b/test/Identity.IntegrationTest/Endpoints/IdentityServerSsoTests.cs
@@ -16,9 +16,9 @@ using Bit.Core.Utilities;
using Bit.Identity.Models.Request.Accounts;
using Bit.IntegrationTestCommon.Factories;
using Bit.Test.Common.Helpers;
+using Duende.IdentityModel;
using Duende.IdentityServer.Models;
using Duende.IdentityServer.Stores;
-using IdentityModel;
using Microsoft.EntityFrameworkCore;
using NSubstitute;
using Xunit;
diff --git a/test/Identity.IntegrationTest/Endpoints/IdentityServerTwoFactorTests.cs b/test/Identity.IntegrationTest/Endpoints/IdentityServerTwoFactorTests.cs
index 289f321512..6f0ef20295 100644
--- a/test/Identity.IntegrationTest/Endpoints/IdentityServerTwoFactorTests.cs
+++ b/test/Identity.IntegrationTest/Endpoints/IdentityServerTwoFactorTests.cs
@@ -15,9 +15,9 @@ using Bit.Identity.Models.Request.Accounts;
using Bit.IntegrationTestCommon.Factories;
using Bit.Test.Common.AutoFixture.Attributes;
using Bit.Test.Common.Helpers;
+using Duende.IdentityModel;
using Duende.IdentityServer.Models;
using Duende.IdentityServer.Stores;
-using IdentityModel;
using LinqToDB;
using NSubstitute;
using Xunit;