diff --git a/DiskSearch.GUI/DiskSearch.GUI.csproj b/DiskSearch.GUI/DiskSearch.GUI.csproj
index 9b904b1..bb8ef46 100644
--- a/DiskSearch.GUI/DiskSearch.GUI.csproj
+++ b/DiskSearch.GUI/DiskSearch.GUI.csproj
@@ -22,7 +22,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Google.Protobuf" Version="3.13.0" />
+    <PackageReference Include="Google.Protobuf" Version="3.15.6" />
     <PackageReference Include="Grpc.Net.Client" Version="2.33.1" />
     <PackageReference Include="Grpc.Tools" Version="2.33.1">
       <PrivateAssets>all</PrivateAssets>