diff --git a/src/EpiEvents.Commerce.Tests/packages.config b/src/EpiEvents.Commerce.Tests/packages.config
index f22e267..6e49e45 100644
--- a/src/EpiEvents.Commerce.Tests/packages.config
+++ b/src/EpiEvents.Commerce.Tests/packages.config
@@ -23,7 +23,7 @@
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net461" />
   <package id="Newtonsoft.Json" version="9.0.1" targetFramework="net461" />
   <package id="Optional" version="4.0.0" targetFramework="net461" />
-  <package id="SharpZipLib" version="0.86.0" targetFramework="net461" />
+  <package id="SharpZipLib" version="1.3.3" targetFramework="net461" />
   <package id="System.ComponentModel.Annotations" version="4.4.0" targetFramework="net461" />
   <package id="System.Data.SqlClient" version="4.4.0" targetFramework="net461" />
   <package id="System.Reflection.Emit" version="4.3.0" targetFramework="net461" />