diff --git a/Tests/packages.config b/Tests/packages.config
index e5ba932..ea6b2c0 100644
--- a/Tests/packages.config
+++ b/Tests/packages.config
@@ -2,6 +2,6 @@
 <packages>
   <package id="NPOI" version="2.0.6" targetFramework="net40" />
   <package id="NUnit" version="2.6.3" targetFramework="net40" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net40" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net40" />
   <package id="SpecFlow" version="1.9.0" targetFramework="net40" />
 </packages>
\ No newline at end of file