diff --git a/packages.config b/packages.config
index 20ec039..70bb485 100644
--- a/packages.config
+++ b/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="BouncyCastle" version="1.8.3.1" targetFramework="net46" />
   <package id="ControlzEx" version="3.0.2.4" targetFramework="net46" />
-  <package id="Google.Protobuf" version="3.6.1" targetFramework="net46" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net46" />
   <package id="K4os.Compression.LZ4" version="1.1.11" targetFramework="net46" />
   <package id="K4os.Compression.LZ4.Streams" version="1.1.11" targetFramework="net46" />
   <package id="K4os.Hash.xxHash" version="1.0.6" targetFramework="net46" />