diff --git a/CEF/Lab.Startup/WinFormNet48/packages.config b/CEF/Lab.Startup/WinFormNet48/packages.config
index db8da869..70c96e17 100644
--- a/CEF/Lab.Startup/WinFormNet48/packages.config
+++ b/CEF/Lab.Startup/WinFormNet48/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="bootstrap" version="4.4.1" targetFramework="net48" />
+  <package id="bootstrap" version="5.0.0" targetFramework="net48" />
   <package id="cef.redist.x64" version="79.1.36" targetFramework="net48" />
   <package id="cef.redist.x86" version="79.1.36" targetFramework="net48" />
   <package id="CefSharp.Common" version="79.1.360" targetFramework="net48" />