diff --git a/Zone.UmbracoMapper.Tests/packages.config b/Zone.UmbracoMapper.Tests/packages.config
index 8b2f068..da75e94 100644
--- a/Zone.UmbracoMapper.Tests/packages.config
+++ b/Zone.UmbracoMapper.Tests/packages.config
@@ -34,7 +34,7 @@
   <package id="Newtonsoft.Json" version="6.0.8" targetFramework="net45" />
   <package id="Owin" version="1.0" targetFramework="net45" />
   <package id="semver" version="1.1.2" targetFramework="net45" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net45" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net45" />
   <package id="UmbracoCms.Core" version="7.4.1" targetFramework="net45" />
   <package id="UrlRewritingNet" version="2.0.7" targetFramework="net45" />
   <package id="xmlrpcnet" version="2.5.0" targetFramework="net45" />