diff --git a/DK.Api/packages.config b/DK.Api/packages.config
index b344c67..73dbe05 100644
--- a/DK.Api/packages.config
+++ b/DK.Api/packages.config
@@ -4,7 +4,7 @@
   <package id="Antlr3.Runtime" version="3.5.1" targetFramework="net461" />
   <package id="bootstrap" version="4.1.3" targetFramework="net461" />
   <package id="EntityFramework" version="6.2.0" targetFramework="net461" />
-  <package id="Google.Protobuf" version="3.6.0" targetFramework="net461" />
+  <package id="Google.Protobuf" version="3.15.0" targetFramework="net461" />
   <package id="Iesi.Collections" version="4.0.4" targetFramework="net461" />
   <package id="jQuery" version="3.3.1" targetFramework="net461" />
   <package id="Microsoft.ApplicationInsights" version="2.6.4" targetFramework="net461" />