diff --git a/Directory.Build.targets b/Directory.Build.targets
index da21df5..65ae05e 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -6,14 +6,6 @@
         <IdentityServerVersion>7.0.4</IdentityServerVersion>
     </PropertyGroup>
 
-    <PropertyGroup Condition=" '$(TargetFramework)' == 'net6.0'">
-        <FrameworkVersion>6.0.26</FrameworkVersion>
-        <ExtensionsVersion>6.0.0</ExtensionsVersion>
-        <WilsonVersion>6.35.0</WilsonVersion>
-        <IdentityServerVersion>6.3.6</IdentityServerVersion>
-    </PropertyGroup>
-
-
     <ItemGroup>
         <!-- ASP.NET -->
         <PackageReference Update="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="$(FrameworkVersion)" />
diff --git a/src/Duende.AccessTokenManagement.OpenIdConnect/UserAccessTokenManagementService.cs b/src/Duende.AccessTokenManagement.OpenIdConnect/UserAccessTokenManagementService.cs
index a54465e..833bf29 100755
--- a/src/Duende.AccessTokenManagement.OpenIdConnect/UserAccessTokenManagementService.cs
+++ b/src/Duende.AccessTokenManagement.OpenIdConnect/UserAccessTokenManagementService.cs
@@ -19,11 +19,7 @@ public class UserAccessAccessTokenManagementService : IUserTokenManagementServic
 {
     private readonly IUserTokenRequestSynchronization _sync;
     private readonly IUserTokenStore _userAccessTokenStore;
-#if NET8_0_OR_GREATER
     private readonly TimeProvider _clock;
-#else
-    private readonly ISystemClock _clock;
-#endif
     private readonly UserTokenManagementOptions _options;
     private readonly IUserTokenEndpointService _tokenEndpointService;
     private readonly ILogger<UserAccessAccessTokenManagementService> _logger;
@@ -40,11 +36,7 @@ public class UserAccessAccessTokenManagementService : IUserTokenManagementServic
     public UserAccessAccessTokenManagementService(
         IUserTokenRequestSynchronization sync,
         IUserTokenStore userAccessTokenStore,
-#if NET8_0_OR_GREATER
         TimeProvider clock,
-#else
-        ISystemClock clock,
-#endif
         IOptions<UserTokenManagementOptions> options,
         IUserTokenEndpointService tokenEndpointService,
         ILogger<UserAccessAccessTokenManagementService> logger)
@@ -100,11 +92,7 @@ public async Task<UserToken> GetAccessTokenAsync(
         }
 
         var dtRefresh = userToken.Expiration.Subtract(_options.RefreshBeforeExpiration);
-#if NET8_0_OR_GREATER
         var utcNow = _clock.GetUtcNow();
-#else
-        var utcNow = _clock.UtcNow;
-#endif
         if (dtRefresh < utcNow || parameters.ForceRenewal || needsRenewal)
         {
             _logger.LogDebug("Token for user {user} needs refreshing.", userName);
diff --git a/src/Duende.AccessTokenManagement/ClientCredentialsTokenManagementServiceCollectionExtensions.cs b/src/Duende.AccessTokenManagement/ClientCredentialsTokenManagementServiceCollectionExtensions.cs
index 2e17a1a..0d8c847 100644
--- a/src/Duende.AccessTokenManagement/ClientCredentialsTokenManagementServiceCollectionExtensions.cs
+++ b/src/Duende.AccessTokenManagement/ClientCredentialsTokenManagementServiceCollectionExtensions.cs
@@ -39,14 +39,14 @@ public static ClientCredentialsTokenManagementBuilder AddClientCredentialsTokenM
     {
         services.TryAddSingleton<ITokenRequestSynchronization, TokenRequestSynchronization>();
 
-        services.TryAddSingleton<IClientCredentialsTokenManagementService, ClientCredentialsTokenManagementService>();
-        services.TryAddSingleton<IClientCredentialsTokenCache, DistributedClientCredentialsTokenCache>();
-        services.TryAddSingleton<IClientCredentialsTokenEndpointService, ClientCredentialsTokenEndpointService>();
-        services.TryAddSingleton<IClientAssertionService, DefaultClientAssertionService>();
-
-        services.TryAddSingleton<IDPoPProofService, DefaultDPoPProofService>();
-        services.TryAddSingleton<IDPoPKeyStore, DefaultDPoPKeyStore>();
-        services.TryAddSingleton<IDPoPNonceStore, DistributedDPoPNonceStore>();
+        services.TryAddTransient<IClientCredentialsTokenManagementService, ClientCredentialsTokenManagementService>();
+        services.TryAddTransient<IClientCredentialsTokenCache, DistributedClientCredentialsTokenCache>();
+        services.TryAddTransient<IClientCredentialsTokenEndpointService, ClientCredentialsTokenEndpointService>();
+        services.TryAddTransient<IClientAssertionService, DefaultClientAssertionService>();
+
+        services.TryAddTransient<IDPoPProofService, DefaultDPoPProofService>();
+        services.TryAddTransient<IDPoPKeyStore, DefaultDPoPKeyStore>();
+        services.TryAddTransient<IDPoPNonceStore, DistributedDPoPNonceStore>();
 
         services.AddHttpClient(ClientCredentialsTokenManagementDefaults.BackChannelHttpClientName);
 
diff --git a/test/Tests/Framework/TestLoggerProvider.cs b/test/Tests/Framework/TestLoggerProvider.cs
index f541ab9..d0837dc 100644
--- a/test/Tests/Framework/TestLoggerProvider.cs
+++ b/test/Tests/Framework/TestLoggerProvider.cs
@@ -23,9 +23,7 @@ public void Dispose()
         }
 
         public IDisposable BeginScope<TState>(TState state)
-#if NET8_0_OR_GREATER
             where TState : notnull
-#endif
         {
             return this;
         }