diff --git a/code/Sample.Web/Sample.Web.csproj b/code/Sample.Web/Sample.Web.csproj
index adb24cd..6289c91 100644
--- a/code/Sample.Web/Sample.Web.csproj
+++ b/code/Sample.Web/Sample.Web.csproj
@@ -49,7 +49,7 @@
     <PackageReference Include="Antlr" Version="3.5.0.2" />
     <PackageReference Include="AutoMapper" Version="6.2.1" />
     <PackageReference Include="BeginCollectionItem" Version="1.2.1.0" />
-    <PackageReference Include="bootstrap" Version="3.3.7" />
+    <PackageReference Include="bootstrap" Version="3.4.1" />
     <PackageReference Include="IdentityModel" Version="1.12" />
     <PackageReference Include="jQuery" Version="2.2.4" />
     <PackageReference Include="Legacy2CPSWorkaround" Version="1.0.0">