diff --git a/ExportPDFMVC/packages.config b/ExportPDFMVC/packages.config
index cdb7c71..14d53f4 100644
--- a/ExportPDFMVC/packages.config
+++ b/ExportPDFMVC/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="bootstrap" version="3.0.0" targetFramework="net461" />
+  <package id="bootstrap" version="3.4.1" targetFramework="net461" />
   <package id="Dapper" version="2.0.35" targetFramework="net461" />
   <package id="iTextSharp" version="5.5.13.1" targetFramework="net461" />
   <package id="jQuery" version="1.10.2" targetFramework="net461" />