diff --git a/src/Kalman.Studio/packages.config b/src/Kalman.Studio/packages.config
index d6e459c..7c8201e 100644
--- a/src/Kalman.Studio/packages.config
+++ b/src/Kalman.Studio/packages.config
@@ -5,7 +5,7 @@
   <package id="EmitMapper" version="1.0.0" targetFramework="net40" />
   <package id="EntityFramework" version="6.2.0" targetFramework="net46" />
   <package id="FirebirdSql.Data.FirebirdClient" version="6.2.0.1" targetFramework="net46" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net46" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net46" />
   <package id="IBM.Data.DB2" version="10.0.5.5" targetFramework="net46" />
   <package id="ICSharpCode.TextEditor" version="3.2.1.6466" targetFramework="net46" />
   <package id="LiteDB" version="4.1.4" targetFramework="net46" />