diff --git a/appmodernization/app-service/src/Contoso.Expenses/Contoso.Expenses.Web/packages.config b/appmodernization/app-service/src/Contoso.Expenses/Contoso.Expenses.Web/packages.config
index 0e2c462..0106725 100644
--- a/appmodernization/app-service/src/Contoso.Expenses/Contoso.Expenses.Web/packages.config
+++ b/appmodernization/app-service/src/Contoso.Expenses/Contoso.Expenses.Web/packages.config
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Antlr" version="3.5.0.2" targetFramework="net452" />
-  <package id="bootstrap" version="3.3.7" targetFramework="net452" />
+  <package id="bootstrap" version="3.4.1" targetFramework="net452" />
   <package id="EntityFramework" version="6.1.3" targetFramework="net452" />
   <package id="jQuery" version="3.1.1" targetFramework="net452" />
   <package id="jQuery.Validation" version="1.16.0" targetFramework="net452" />