diff --git a/14JongChu/NewPMS/NewPMS/packages.config b/14JongChu/NewPMS/NewPMS/packages.config
index d104854..fda45f0 100644
--- a/14JongChu/NewPMS/NewPMS/packages.config
+++ b/14JongChu/NewPMS/NewPMS/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="BouncyCastle" version="1.8.3.1" targetFramework="net452" />
   <package id="EntityFramework" version="6.2.0" targetFramework="net452" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net452" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net452" />
   <package id="MySql.Data" version="8.0.16" targetFramework="net452" />
   <package id="MySql.Data.Entity" version="6.10.8" targetFramework="net452" />
 </packages>
\ No newline at end of file