diff --git a/Directory.Build.props b/Directory.Build.props
index 66886ae..3c5f002 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -23,6 +23,7 @@
 
   <PropertyGroup>
     <AutoBogus_Moq>1.0.0</AutoBogus_Moq>
+    <Microsoft_Extensions_DependencyInjection>2.1.1</Microsoft_Extensions_DependencyInjection>
     <dotnet_xunit>2.3.1</dotnet_xunit>
     <FluentAssertions>4.19.4</FluentAssertions>
     <Microsoft_NET_Test_Sdk>15.6.0</Microsoft_NET_Test_Sdk>
diff --git a/src/Orleans.Redis.Common/CachedConnectionMultiplexerFactory.cs b/src/Orleans.Redis.Common/CachedConnectionMultiplexerFactory.cs
index a1b9e35..ec4b154 100644
--- a/src/Orleans.Redis.Common/CachedConnectionMultiplexerFactory.cs
+++ b/src/Orleans.Redis.Common/CachedConnectionMultiplexerFactory.cs
@@ -14,7 +14,7 @@ public class CachedConnectionMultiplexerFactory : IConnectionMultiplexerFactory
     {
         public static IConnectionMultiplexerFactory Default = new CachedConnectionMultiplexerFactory();
 
-        private readonly SemaphoreSlim _lock = new SemaphoreSlim(1);
+        private readonly SemaphoreSlim _lock = new SemaphoreSlim(1, 1);
         private readonly Dictionary<string, IConnectionMultiplexer> _connectionMultiplexers = new Dictionary<string, IConnectionMultiplexer>();
         internal Dictionary<string, IConnectionMultiplexer> TestHook_ConnectionMultiplexers => _connectionMultiplexers;
 
@@ -24,15 +24,20 @@ public async Task<IConnectionMultiplexer> CreateAsync(string configuration)
         {
             if (!_connectionMultiplexers.TryGetValue(configuration, out var connectionMultiplexer))
             {
-                await _lock.WaitAsync();
+                try
+                {
+                    await _lock.WaitAsync();
 
-                if (!_connectionMultiplexers.TryGetValue(configuration, out connectionMultiplexer))
+                    if (!_connectionMultiplexers.TryGetValue(configuration, out connectionMultiplexer))
+                    {
+                        connectionMultiplexer = await ConnectionMultiplexer.ConnectAsync(configuration);
+                        _connectionMultiplexers.Add(configuration, connectionMultiplexer);
+                    }
+                }
+                finally
                 {
-                    connectionMultiplexer = await ConnectionMultiplexer.ConnectAsync(configuration);
-                    _connectionMultiplexers.Add(configuration, connectionMultiplexer);
+                    _lock.Release();
                 }
-
-                _lock.Release();
             }
 
             return connectionMultiplexer;
diff --git a/src/Orleans.Streaming.Redis/Providers/Streams/RedisQueueAdapter.cs b/src/Orleans.Streaming.Redis/Providers/Streams/RedisQueueAdapter.cs
index 331e5ef..3ea159f 100644
--- a/src/Orleans.Streaming.Redis/Providers/Streams/RedisQueueAdapter.cs
+++ b/src/Orleans.Streaming.Redis/Providers/Streams/RedisQueueAdapter.cs
@@ -50,7 +50,7 @@ public RedisQueueAdapter(
             Name = providerName;
             _streamQueueMapper = streamQueueMapper;
             _dataAdapter = dataAdapter;
-            _logger = logger != null ? logger.ForContext<RedisQueueAdapter>() : SilentLogger.Logger;
+            _logger = (logger ?? SilentLogger.Logger).ForContext<RedisQueueAdapter>();
         }
 
         public IQueueAdapterReceiver CreateReceiver(QueueId queueId)
diff --git a/src/Orleans.Streaming.Redis/Providers/Streams/RedisStreamBuilder.cs b/src/Orleans.Streaming.Redis/Providers/Streams/RedisStreamBuilder.cs
index 1ac185e..f17efdf 100644
--- a/src/Orleans.Streaming.Redis/Providers/Streams/RedisStreamBuilder.cs
+++ b/src/Orleans.Streaming.Redis/Providers/Streams/RedisStreamBuilder.cs
@@ -18,7 +18,7 @@ public SiloRedisStreamConfigurator(string name, ISiloHostBuilder builder)
                 .ConfigureApplicationParts(parts => parts.AddFrameworkPart(typeof(RedisQueueAdapterFactory).Assembly))
                 .ConfigureServices(services =>
                 {
-                services.ConfigureNamedOptionForLogging<RedisStreamOptions>(name);
+                    services.ConfigureNamedOptionForLogging<RedisStreamOptions>(name);
                     services.TryAddSingleton(CachedConnectionMultiplexerFactory.Default);
                     services.TryAddSingleton<ISerializationManager, OrleansSerializationManager>();
                     services.AddSingleton<IRedisDataAdapter, RedisDataAdapter>();
diff --git a/test/CoreTests/CoreTests.csproj b/test/CoreTests/CoreTests.csproj
index 2bdb36b..d08bcac 100644
--- a/test/CoreTests/CoreTests.csproj
+++ b/test/CoreTests/CoreTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <IsPackable>false</IsPackable>
     <RuntimeFrameworkVersion>2.0.3</RuntimeFrameworkVersion>
     <Configurations>Debug;Release;Test</Configurations>
diff --git a/test/Shared/Shared.csproj b/test/Shared/Shared.csproj
index 8f25499..11b2620 100644
--- a/test/Shared/Shared.csproj
+++ b/test/Shared/Shared.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.1.1" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="$(Microsoft_Extensions_DependencyInjection)" />
     <PackageReference Include="xunit" Version="$(xunit)" />
   </ItemGroup>
 
diff --git a/test/StorageTests.GrainInterfaces/StorageTests.GrainInterfaces.csproj b/test/StorageTests.GrainInterfaces/StorageTests.GrainInterfaces.csproj
index a3458b2..619c39c 100644
--- a/test/StorageTests.GrainInterfaces/StorageTests.GrainInterfaces.csproj
+++ b/test/StorageTests.GrainInterfaces/StorageTests.GrainInterfaces.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <IsPackable>false</IsPackable>
     <RuntimeFrameworkVersion>2.0.3</RuntimeFrameworkVersion>
     <Configurations>Debug;Release;Test</Configurations>
diff --git a/test/StorageTests/StorageTests.csproj b/test/StorageTests/StorageTests.csproj
index 130ad3e..06b8489 100644
--- a/test/StorageTests/StorageTests.csproj
+++ b/test/StorageTests/StorageTests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp2.1</TargetFramework>
     <IsPackable>false</IsPackable>
     <RuntimeFrameworkVersion>2.0.3</RuntimeFrameworkVersion>
     <Configurations>Debug;Release;Test</Configurations>
@@ -17,8 +17,8 @@
     <PackageReference Include="FluentAssertions" Version="$(FluentAssertions)" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="$(Microsoft_NET_Test_Sdk)" />
     <PackageReference Include="Microsoft.Orleans.Core" Version="$(Microsoft_Orleans_Core)" />
-    <PackageReference Include="Microsoft.Orleans.OrleansCodeGenerator" Version="2.0.5" />
-    <PackageReference Include="Microsoft.Orleans.OrleansCodeGenerator.Build" Version="2.0.5">
+    <PackageReference Include="Microsoft.Orleans.OrleansCodeGenerator" Version="$(Microsoft_Orleans_Core)" />
+    <PackageReference Include="Microsoft.Orleans.OrleansCodeGenerator.Build" Version="$(Microsoft_Orleans_Core)">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
     </PackageReference>