diff --git a/src/csharp/Grpc.Core.Api/Grpc.Core.Api.csproj b/src/csharp/Grpc.Core.Api/Grpc.Core.Api.csproj
index 0dc73576bf5..eec8fc56de0 100755
--- a/src/csharp/Grpc.Core.Api/Grpc.Core.Api.csproj
+++ b/src/csharp/Grpc.Core.Api/Grpc.Core.Api.csproj
@@ -21,7 +21,7 @@
   <Import Project="..\Grpc.Core\SourceLink.csproj.include" />
 
   <ItemGroup>
-    <PackageReference Include="System.Interactive.Async" Version="3.1.1" />
+    <PackageReference Include="System.Interactive.Async" Version="3.2.0" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net45' ">
diff --git a/src/csharp/Grpc.Core/Grpc.Core.csproj b/src/csharp/Grpc.Core/Grpc.Core.csproj
index b99c23ae131..43ace08e52c 100755
--- a/src/csharp/Grpc.Core/Grpc.Core.csproj
+++ b/src/csharp/Grpc.Core/Grpc.Core.csproj
@@ -85,7 +85,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.Interactive.Async" Version="3.1.1" />
+    <PackageReference Include="System.Interactive.Async" Version="3.2.0" />
   </ItemGroup>
 
   <ItemGroup Condition=" '$(TargetFramework)' == 'net45' ">