diff --git a/src/library/server-server-sync-lib.csproj b/src/library/server-server-sync-lib.csproj
index 1283b326..fc8c0a25 100644
--- a/src/library/server-server-sync-lib.csproj
+++ b/src/library/server-server-sync-lib.csproj
@@ -23,7 +23,7 @@
     <PackageReference Include="Microsoft.AspNetCore" Version="2.2.0" />
     <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.2.0" />
     <PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-    <PackageReference Include="SharpZipLib" Version="1.2.0" />
+    <PackageReference Include="SharpZipLib" Version="1.3.3" />
     <PackageReference Include="SoapCore" Version="0.9.9.6" />
     <PackageReference Include="System.ServiceModel.Duplex" Version="4.5.3" />
     <PackageReference Include="System.ServiceModel.Http" Version="4.5.3" />