diff --git a/Lucy.WebHost/packages.config b/Lucy.WebHost/packages.config
index 8affd75..3a65c49 100644
--- a/Lucy.WebHost/packages.config
+++ b/Lucy.WebHost/packages.config
@@ -2,7 +2,7 @@
 <packages>
   <package id="AntiXSS" version="4.3.0" targetFramework="net461" />
   <package id="Antlr" version="3.4.1.9004" targetFramework="net45" />
-  <package id="bootstrap" version="3.0.0" targetFramework="net45" />
+  <package id="bootstrap" version="3.4.1" targetFramework="net45" />
   <package id="EntityFramework" version="6.1.3" targetFramework="net461" />
   <package id="IdentityServer3" version="2.6.1" targetFramework="net461" />
   <package id="jQuery" version="1.10.2" targetFramework="net461" />