diff --git a/source/Unity_FoveatedStreamingClient/packages.config b/source/Unity_FoveatedStreamingClient/packages.config
index f3c3360..fcd683d 100644
--- a/source/Unity_FoveatedStreamingClient/packages.config
+++ b/source/Unity_FoveatedStreamingClient/packages.config
@@ -3,7 +3,7 @@
   <package id="Emgu.CV" version="4.3.0.3890" targetFramework="net471" />
   <package id="Emgu.CV.runtime.windows" version="4.3.0.3890" targetFramework="net471" />
   <package id="Fody" version="6.0.5" targetFramework="net471" developmentDependency="true" />
-  <package id="Google.Protobuf" version="3.11.4" targetFramework="net471" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net471" />
   <package id="Keras.NET" version="3.8.4.4" targetFramework="net471" />
   <package id="MethodBoundaryAspect.Fody" version="2.0.138" targetFramework="net471" />
   <package id="Microsoft.CSharp" version="4.5.0" targetFramework="net471" />