diff --git a/MrCMS/packages.config b/MrCMS/packages.config
index 20d6816d6..64d6be57b 100644
--- a/MrCMS/packages.config
+++ b/MrCMS/packages.config
@@ -49,7 +49,7 @@
   <package id="Owin.Security.Providers.LinkedIn" version="2.15.1" targetFramework="net47" />
   <package id="Remotion.Linq" version="2.1.2" targetFramework="net47" />
   <package id="Remotion.Linq.EagerFetching" version="2.1.0" targetFramework="net47" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net47" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net47" />
   <package id="StackExchange.Redis" version="1.0.488" targetFramework="net47" />
   <package id="System.Data.SQLite.Core" version="1.0.105.2" targetFramework="net47" />
   <package id="System.Spatial" version="5.8.3" targetFramework="net47" />