diff --git a/src/csharp/Grpc.Core/Grpc.Core.nuspec b/src/csharp/Grpc.Core/Grpc.Core.nuspec
index a8459c4d9cd557279fd283efb09146eb6c85fd4a..b2a0160147e07afb9a5d18488df43bcc7597027b 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.nuspec
+++ b/src/csharp/Grpc.Core/Grpc.Core.nuspec
@@ -15,7 +15,7 @@
     <copyright>Copyright 2015, Google Inc.</copyright>
     <tags>gRPC RPC Protocol HTTP/2</tags>
     <dependencies>
-      <dependency id="System.Interactive.Async" version="3.0.0" />
+      <dependency id="System.Interactive.Async" version="3.1.1" />
     </dependencies>
   </metadata>
   <files>