diff --git a/HydroServerTools/packages.config b/HydroServerTools/packages.config
index a9f86f7..c747f62 100644
--- a/HydroServerTools/packages.config
+++ b/HydroServerTools/packages.config
@@ -51,7 +51,7 @@
   <package id="Newtonsoft.Json" version="10.0.3" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="Respond" version="1.2.0" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net45" />
   <package id="System.Management.Automation" version="6.1.7601.17515" targetFramework="net45" />
   <package id="System.Spatial" version="5.6.2" targetFramework="net45" />
   <package id="WebGrease" version="1.5.2" targetFramework="net45" />