diff --git a/ToolBox/packages.config b/ToolBox/packages.config
index 2b3a7271fee5..39c2057248b4 100644
--- a/ToolBox/packages.config
+++ b/ToolBox/packages.config
@@ -15,7 +15,7 @@
   <package id="NodaTime" version="1.3.4" targetFramework="net452" />
   <package id="QuantConnect.pythonnet" version="1.0.5.30" targetFramework="net452" />
   <package id="SevenZipSharp" version="0.64" targetFramework="net45" />
-  <package id="SharpZipLib" version="1.2.0" targetFramework="net462" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net462" />
   <package id="SocketIoClientDotNet" version="1.0.7.1" targetFramework="net462" />
   <package id="SuperSocket.ClientEngine.Core" version="0.10.0" targetFramework="net462" />
   <package id="System.Collections.Immutable" version="1.4.0" targetFramework="net462" />