diff --git a/packages.config b/packages.config
index 9851b7b..ce0d49f 100644
--- a/packages.config
+++ b/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="BCrypt.Net" version="0.1.0" targetFramework="net46" />
   <package id="BouncyCastle" version="1.8.3.1" targetFramework="net46" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net46" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net46" />
   <package id="MySql.Data" version="8.0.18" targetFramework="net46" />
   <package id="Newtonsoft.Json" version="12.0.2" targetFramework="net461" />
   <package id="SSH.NET" version="2016.1.0" targetFramework="net46" />