diff --git a/Our.Umbraco.MaintenanceMode/packages.config b/Our.Umbraco.MaintenanceMode/packages.config
index 626da21..b7f02e9 100644
--- a/Our.Umbraco.MaintenanceMode/packages.config
+++ b/Our.Umbraco.MaintenanceMode/packages.config
@@ -33,7 +33,7 @@
   <package id="Newtonsoft.Json" version="10.0.2" targetFramework="net461" />
   <package id="Owin" version="1.0" targetFramework="net461" />
   <package id="semver" version="1.1.2" targetFramework="net461" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net461" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net461" />
   <package id="System.Threading.Tasks.Dataflow" version="4.7.0" targetFramework="net461" />
   <package id="UmbracoCms.Core" version="7.7.3" targetFramework="net461" />
 </packages>
\ No newline at end of file