diff --git a/Demos/Aspose.Cells.API/Aspose.Cells.API.csproj b/Demos/Aspose.Cells.API/Aspose.Cells.API.csproj
index bfdeb542..c9ccd1dc 100644
--- a/Demos/Aspose.Cells.API/Aspose.Cells.API.csproj
+++ b/Demos/Aspose.Cells.API/Aspose.Cells.API.csproj
@@ -281,7 +281,7 @@
   <ItemGroup>
     <PackageReference Include="Antlr" Version="3.5.0.2" />
     <PackageReference Include="Aspose.PDF" Version="20.10.0" />
-    <PackageReference Include="bootstrap" Version="3.3.7" />
+    <PackageReference Include="bootstrap" Version="3.4.1" />
     <PackageReference Include="jQuery" Version="3.3.1" />
     <PackageReference Include="log4net" Version="2.0.4" />
     <PackageReference Include="Microsoft.ApplicationInsights.Web" Version="2.6.4" />