diff --git a/test/distrib/csharp/DistribTest/DistribTest.csproj b/test/distrib/csharp/DistribTest/DistribTest.csproj
index 6ca03b2c800..0bff9ff3e0b 100644
--- a/test/distrib/csharp/DistribTest/DistribTest.csproj
+++ b/test/distrib/csharp/DistribTest/DistribTest.csproj
@@ -65,7 +65,7 @@
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Interactive.Async">
-      <HintPath>..\packages\Ix-Async.1.2.3\lib\net45\System.Interactive.Async.dll</HintPath>
+      <HintPath>..\packages\System.Interactive.Async.3.0.0\lib\net45\System.Interactive.Async.dll</HintPath>
     </Reference>
     <Reference Include="System.Net" />
     <Reference Include="System.Net.Http" />
diff --git a/test/distrib/csharp/DistribTest/packages.config b/test/distrib/csharp/DistribTest/packages.config
index e5d2d9d3831..84be8f76b59 100644
--- a/test/distrib/csharp/DistribTest/packages.config
+++ b/test/distrib/csharp/DistribTest/packages.config
@@ -6,6 +6,6 @@
   <package id="Grpc" version="__GRPC_NUGET_VERSION__" targetFramework="net45" />
   <package id="Grpc.Auth" version="__GRPC_NUGET_VERSION__" targetFramework="net45" />
   <package id="Grpc.Core" version="__GRPC_NUGET_VERSION__" targetFramework="net45" />
-  <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
+  <package id="System.Interactive.Async" version="3.0.0" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
-</packages>
+</packages>
\ No newline at end of file