diff --git a/Student_Login/packages.config b/Student_Login/packages.config
index c593f86..c4381d3 100644
--- a/Student_Login/packages.config
+++ b/Student_Login/packages.config
@@ -3,7 +3,7 @@
   <package id="Antlr" version="3.5.0.2" targetFramework="net452" />
   <package id="bootstrap" version="3.4.1" targetFramework="net452" />
   <package id="BouncyCastle" version="1.8.3.1" targetFramework="net452" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net452" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net452" />
   <package id="jQuery" version="3.3.1" targetFramework="net452" />
   <package id="jQuery.Validation" version="1.17.0" targetFramework="net452" />
   <package id="Microsoft.AspNet.Mvc" version="5.2.4" targetFramework="net452" />