diff --git a/samples/Books Web API/Books.Api/packages.config b/samples/Books Web API/Books.Api/packages.config
index 1e3e2057..b6c44b00 100644
--- a/samples/Books Web API/Books.Api/packages.config	
+++ b/samples/Books Web API/Books.Api/packages.config	
@@ -2,7 +2,7 @@
 <packages>
   <package id="Antlr" version="3.5.0.2" targetFramework="net45" />
   <package id="AutoMapper" version="4.1.1" targetFramework="net45" />
-  <package id="bootstrap" version="3.3.5" targetFramework="net45" />
+  <package id="bootstrap" version="3.4.1" targetFramework="net45" />
   <package id="EntityFramework" version="6.1.3" targetFramework="net45" />
   <package id="jQuery" version="2.1.4" targetFramework="net45" />
   <package id="jQuery.Validation" version="1.14.0" targetFramework="net45" />