diff --git a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
index 094e9dd66..0d49cfd2b 100644
--- a/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
+++ b/src/Orchard.Tests.Modules/Orchard.Tests.Modules.csproj
@@ -76,9 +76,6 @@
     <Reference Include="FluentPath, Version=1.0.0.0, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>..\packages\Orchard.FluentPath.1.0.0.1\lib\FluentPath.dll</HintPath>
     </Reference>
-    <Reference Include="ICSharpCode.SharpZipLib, Version=1.3.3.11, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
-      <HintPath>..\packages\SharpZipLib.1.3.3\lib\net45\ICSharpCode.SharpZipLib.dll</HintPath>
-    </Reference>
     <Reference Include="Iesi.Collections, Version=4.0.0.4000, Culture=neutral, PublicKeyToken=aa95f207798dfdb4, processorArchitecture=MSIL">
       <HintPath>..\packages\Iesi.Collections.4.0.4\lib\net461\Iesi.Collections.dll</HintPath>
     </Reference>
diff --git a/src/Orchard.Tests.Modules/packages.config b/src/Orchard.Tests.Modules/packages.config
index 179423714..abe8f3750 100644
--- a/src/Orchard.Tests.Modules/packages.config
+++ b/src/Orchard.Tests.Modules/packages.config
@@ -20,5 +20,4 @@
   <package id="Orchard.NuGet.Core" version="1.1.0.0" targetFramework="net48" />
   <package id="Remotion.Linq" version="2.2.0" targetFramework="net48" />
   <package id="Remotion.Linq.EagerFetching" version="2.2.0" targetFramework="net48" />
-  <package id="SharpZipLib" version="1.3.1" targetFramework="net48" />
 </packages>
\ No newline at end of file
diff --git a/src/Orchard.Web/Modules/Lucene/Lucene.csproj b/src/Orchard.Web/Modules/Lucene/Lucene.csproj
index c53ee511b..75454598a 100644
--- a/src/Orchard.Web/Modules/Lucene/Lucene.csproj
+++ b/src/Orchard.Web/Modules/Lucene/Lucene.csproj
@@ -52,9 +52,6 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="ICSharpCode.SharpZipLib, Version=1.3.3.11, Culture=neutral, PublicKeyToken=1b03e6acf1164f73, processorArchitecture=MSIL">
-      <HintPath>..\..\..\packages\SharpZipLib.1.3.3\lib\net45\ICSharpCode.SharpZipLib.dll</HintPath>
-    </Reference>
     <Reference Include="Lucene.Net, Version=3.0.3.0, Culture=neutral, PublicKeyToken=85089178b9ac3181, processorArchitecture=MSIL">
       <HintPath>..\..\..\packages\Lucene.Net.3.0.3\lib\NET40\Lucene.Net.dll</HintPath>
     </Reference>
diff --git a/src/Orchard.Web/Modules/Lucene/packages.config b/src/Orchard.Web/Modules/Lucene/packages.config
index abb597e21..2462f4b54 100644
--- a/src/Orchard.Web/Modules/Lucene/packages.config
+++ b/src/Orchard.Web/Modules/Lucene/packages.config
@@ -6,5 +6,4 @@
   <package id="Microsoft.AspNet.WebPages" version="3.2.7" targetFramework="net48" />
   <package id="Microsoft.CodeDom.Providers.DotNetCompilerPlatform" version="4.1.0" targetFramework="net48" />
   <package id="Microsoft.Web.Infrastructure" version="1.0.0.0" targetFramework="net48" />
-  <package id="SharpZipLib" version="1.3.3" targetFramework="net48" />
 </packages>