diff --git a/ActiveIS.UmbracoForms.CustomEmail/packages.config b/ActiveIS.UmbracoForms.CustomEmail/packages.config
index 4f07561..18af699 100644
--- a/ActiveIS.UmbracoForms.CustomEmail/packages.config
+++ b/ActiveIS.UmbracoForms.CustomEmail/packages.config
@@ -47,7 +47,7 @@
   <package id="Serilog.Sinks.Async" version="1.3.0" targetFramework="net472" />
   <package id="Serilog.Sinks.File" version="4.0.0" targetFramework="net472" />
   <package id="Serilog.Sinks.Map" version="1.0.0" targetFramework="net472" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net472" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net472" />
   <package id="Superpower" version="2.0.0" targetFramework="net472" />
   <package id="System.Diagnostics.DiagnosticSource" version="4.4.1" targetFramework="net472" />
   <package id="System.Threading.Tasks.Dataflow" version="4.9.0" targetFramework="net472" />