diff --git a/src/ProtoBufServiceTest/ProtoBufServiceTest.Tests/packages.config b/src/ProtoBufServiceTest/ProtoBufServiceTest.Tests/packages.config
index 7227923..26f1945 100644
--- a/src/ProtoBufServiceTest/ProtoBufServiceTest.Tests/packages.config
+++ b/src/ProtoBufServiceTest/ProtoBufServiceTest.Tests/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="NUnit" version="2.6.3" targetFramework="net45" />
   <package id="protobuf-net" version="2.0.0.668" targetFramework="net45" />
-  <package id="ServiceStack" version="4.0.33" targetFramework="net45" />
+  <package id="ServiceStack" version="5.9.2" targetFramework="net45" />
   <package id="ServiceStack.Client" version="4.0.33" targetFramework="net45" />
   <package id="ServiceStack.Common" version="4.0.33" targetFramework="net45" />
   <package id="ServiceStack.Interfaces" version="4.0.33" targetFramework="net45" />