diff --git a/ClosedXML/ClosedXML.csproj b/ClosedXML/ClosedXML.csproj
index 3f719ea..d5ddc65 100644
--- a/ClosedXML/ClosedXML.csproj
+++ b/ClosedXML/ClosedXML.csproj
@@ -46,8 +46,8 @@
     <AssemblyOriginatorKeyFile>ClosedXML.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="DocumentFormat.OpenXml, Version=2.5.5631.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\DocumentFormat.OpenXml.2.5\lib\DocumentFormat.OpenXml.dll</HintPath>
+    <Reference Include="DocumentFormat.OpenXml, Version=0.0.1.0, Culture=neutral, PublicKeyToken=8fb06cb64d019a17, processorArchitecture=MSIL">
+      <HintPath>..\packages\DocumentFormat.OpenXml.2.7.1\lib\net45\DocumentFormat.OpenXml.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="FastMember.Signed, Version=1.0.0.9, Culture=neutral, PublicKeyToken=9e8f22703bef9a29, processorArchitecture=MSIL">
diff --git a/ClosedXML/packages.config b/ClosedXML/packages.config
index 698997e..cd2fc49 100644
--- a/ClosedXML/packages.config
+++ b/ClosedXML/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="DocumentFormat.OpenXml" version="2.5" targetFramework="net452" />
+  <package id="DocumentFormat.OpenXml" version="2.7.1" targetFramework="net452" />
   <package id="FastMember.Signed" version="1.1.0" targetFramework="net452" />
 </packages>
\ No newline at end of file
diff --git a/ClosedXML_Examples/ClosedXML_Examples.csproj b/ClosedXML_Examples/ClosedXML_Examples.csproj
index 092f18b..2daeac4 100644
--- a/ClosedXML_Examples/ClosedXML_Examples.csproj
+++ b/ClosedXML_Examples/ClosedXML_Examples.csproj
@@ -45,8 +45,8 @@
     <AssemblyOriginatorKeyFile>ClosedXML.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="DocumentFormat.OpenXml, Version=2.5.5631.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\DocumentFormat.OpenXml.2.5\lib\DocumentFormat.OpenXml.dll</HintPath>
+    <Reference Include="DocumentFormat.OpenXml, Version=0.0.1.0, Culture=neutral, PublicKeyToken=8fb06cb64d019a17, processorArchitecture=MSIL">
+      <HintPath>..\packages\DocumentFormat.OpenXml.2.7.1\lib\net45\DocumentFormat.OpenXml.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
@@ -58,6 +58,7 @@
     <Reference Include="Microsoft.CSharp" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
+    <Reference Include="WindowsBase" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="AutoFilters\DynamicAutoFilter.cs" />
diff --git a/ClosedXML_Examples/packages.config b/ClosedXML_Examples/packages.config
index b1cea46..93a1c7a 100644
--- a/ClosedXML_Examples/packages.config
+++ b/ClosedXML_Examples/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="DocumentFormat.OpenXml" version="2.5" targetFramework="net452" />
+  <package id="DocumentFormat.OpenXml" version="2.7.1" targetFramework="net452" />
 </packages>
\ No newline at end of file
diff --git a/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj b/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
index 912fbe9..5c7b02a 100644
--- a/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
+++ b/ClosedXML_Sandbox/ClosedXML_Sandbox.csproj
@@ -34,8 +34,8 @@
     <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="DocumentFormat.OpenXml, Version=2.5.5631.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\DocumentFormat.OpenXml.2.5\lib\DocumentFormat.OpenXml.dll</HintPath>
+    <Reference Include="DocumentFormat.OpenXml, Version=0.0.1.0, Culture=neutral, PublicKeyToken=8fb06cb64d019a17, processorArchitecture=MSIL">
+      <HintPath>..\packages\DocumentFormat.OpenXml.2.7.1\lib\net45\DocumentFormat.OpenXml.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="System" />
diff --git a/ClosedXML_Sandbox/packages.config b/ClosedXML_Sandbox/packages.config
index b1cea46..93a1c7a 100644
--- a/ClosedXML_Sandbox/packages.config
+++ b/ClosedXML_Sandbox/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="DocumentFormat.OpenXml" version="2.5" targetFramework="net452" />
+  <package id="DocumentFormat.OpenXml" version="2.7.1" targetFramework="net452" />
 </packages>
\ No newline at end of file
diff --git a/ClosedXML_Tests/ClosedXML_Tests.csproj b/ClosedXML_Tests/ClosedXML_Tests.csproj
index b538dfe..1ad18c5 100644
--- a/ClosedXML_Tests/ClosedXML_Tests.csproj
+++ b/ClosedXML_Tests/ClosedXML_Tests.csproj
@@ -43,8 +43,8 @@
     <AssemblyOriginatorKeyFile>ClosedXML.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="DocumentFormat.OpenXml, Version=2.5.5631.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
-      <HintPath>..\packages\DocumentFormat.OpenXml.2.5\lib\DocumentFormat.OpenXml.dll</HintPath>
+    <Reference Include="DocumentFormat.OpenXml, Version=0.0.1.0, Culture=neutral, PublicKeyToken=8fb06cb64d019a17, processorArchitecture=MSIL">
+      <HintPath>..\packages\DocumentFormat.OpenXml.2.7.1\lib\net45\DocumentFormat.OpenXml.dll</HintPath>
       <Private>True</Private>
     </Reference>
     <Reference Include="Microsoft.CSharp" />
diff --git a/ClosedXML_Tests/packages.config b/ClosedXML_Tests/packages.config
index 167f5f7..df4f149 100644
--- a/ClosedXML_Tests/packages.config
+++ b/ClosedXML_Tests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="DocumentFormat.OpenXml" version="2.5" targetFramework="net452" />
+  <package id="DocumentFormat.OpenXml" version="2.7.1" targetFramework="net452" />
   <package id="NUnit" version="3.4.1" targetFramework="net452" />
 </packages>
\ No newline at end of file