diff --git a/MrCMS.Web/packages.config b/MrCMS.Web/packages.config
index d4df9d10f..e83e60cd6 100644
--- a/MrCMS.Web/packages.config
+++ b/MrCMS.Web/packages.config
@@ -48,7 +48,7 @@
   <package id="PayPalCoreSDK" version="1.4.2" targetFramework="net47" />
   <package id="PayPalMerchantSDK" version="2.11.117" targetFramework="net47" />
   <package id="PDFsharp-MigraDoc-GDI" version="1.32.4334.0" targetFramework="net47" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net47" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net47" />
   <package id="System.Data.SQLite.Core" version="1.0.105.2" targetFramework="net47" />
   <package id="WebActivatorEx" version="2.2.0" targetFramework="net47" />
   <package id="WebGrease" version="1.6.0" targetFramework="net47" />