diff --git a/Directory.Build.props b/Directory.Build.props
index 6d77cfc..7e94621 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -13,8 +13,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Nerdbank.GitVersioning" Version="3.0.50" PrivateAssets="All" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0" PrivateAssets="All" />
+    <PackageReference Include="Nerdbank.GitVersioning" Version="3.3.37" PrivateAssets="All" />
   </ItemGroup>
 
 </Project>
\ No newline at end of file
diff --git a/Directory.Build.targets b/Directory.Build.targets
index 19aff1d..c2fdf03 100644
--- a/Directory.Build.targets
+++ b/Directory.Build.targets
@@ -16,7 +16,7 @@
       <RepositoryType>git</RepositoryType>
       <RepositoryUrl>https://github.com/skbkontur/Excel.TemplateEngine</RepositoryUrl>
       <PackageProjectUrl>$(RepositoryUrl)</PackageProjectUrl>
-      <PackageReleaseNotes>$(RepositoryUrl)/releases/tag/v$(MajorMinorVersion)-release</PackageReleaseNotes>
+      <PackageReleaseNotes>$(RepositoryUrl)/releases</PackageReleaseNotes>
     </PropertyGroup>
   </Target>
 
diff --git a/Excel.TemplateEngine.Tests/Excel.TemplateEngine.Tests.csproj b/Excel.TemplateEngine.Tests/Excel.TemplateEngine.Tests.csproj
index e8f2f96..ff24d8c 100644
--- a/Excel.TemplateEngine.Tests/Excel.TemplateEngine.Tests.csproj
+++ b/Excel.TemplateEngine.Tests/Excel.TemplateEngine.Tests.csproj
@@ -1,18 +1,18 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net472;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net48;net5.0</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <AssemblyName>SkbKontur.Excel.TemplateEngine.Tests</AssemblyName>
     <RootNamespace>SkbKontur.Excel.TemplateEngine.Tests</RootNamespace>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="nunit" Version="3.12.0" />
-    <PackageReference Include="FluentAssertions" Version="5.10.2" />
-    <PackageReference Include="NUnit3TestAdapter" Version="3.16.1" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.5.0" />
-    <PackageReference Include="Vostok.Logging.Console" Version="1.0.2" />
+    <PackageReference Include="FluentAssertions" Version="5.10.3" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
+    <PackageReference Include="NUnit" Version="3.13.1" />
+    <PackageReference Include="NUnit3TestAdapter" Version="3.17.0" />
+    <PackageReference Include="Vostok.Logging.Console" Version="1.0.5" />
   </ItemGroup>
 
   <ItemGroup>
@@ -20,132 +20,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <None Update="FileGeneratingTests\Files\empty.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="FileGeneratingTests\Files\template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\colors.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\columnsSwitching.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\comments.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\commentsWithSeveralAuthors.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\complexTemplate.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dataValidations.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\defaultPriceList.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccessInCheckBoxes_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccessInCheckBoxes_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccessInDropDown_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccessInDropDown_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccess_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dictDirectAccess_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dropDownOtherWorksheet_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\dropDownOtherWorksheet_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\empty.xlsm">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\empty.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\emptyEnumerable_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\emptyEnumerable_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\enumerableWithPrimaryKey_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\enumerableWithPrimaryKey_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\formControlsTemplate.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\importAfterCreate_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\importPriceTemplate.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\nonexistentField_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\nonexistent_сheckBoxes_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\nonexistent_сheckBoxes_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\otherSheetDataValidations.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\printingDropDownFromTheOtherWorksheet.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\printingVbaMacros.xlsm">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\simpleWithEnumerable_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\simpleWithEnumerable_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\stringArray_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\stringArrayWithComplexStrings_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\withCellsMergingTemplate.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\withFullPathsTemplate.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\сheckBoxes_target.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\сheckBoxes_template.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
-    <None Update="ObjectPrintingTests\Files\commentsAndOtherSheetDataValidations.xlsx">
-      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
-    </None>
+    <Content Include="*/Files/*.xls?" CopyToOutputDirectory="Always" />
   </ItemGroup>
 
 </Project>
diff --git a/Excel.TemplateEngine/Excel.TemplateEngine.csproj b/Excel.TemplateEngine/Excel.TemplateEngine.csproj
index 26af842..77ccfd6 100644
--- a/Excel.TemplateEngine/Excel.TemplateEngine.csproj
+++ b/Excel.TemplateEngine/Excel.TemplateEngine.csproj
@@ -1,18 +1,23 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>net471;netstandard2.0</TargetFrameworks>
     <AssemblyName>SkbKontur.Excel.TemplateEngine</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <LangVersion>latest</LangVersion>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="morelinq" Version="3.2.0" />
+    <PackageReference Include="morelinq" Version="3.3.2" />
     <PackageReference Include="C5" Version="2.5.3" />
-    <PackageReference Include="DocumentFormat.OpenXml" Version="2.11.3" />
-    <PackageReference Include="JetBrains.Annotations" Version="2019.1.3" />
-    <PackageReference Include="Vostok.Logging.Abstractions" Version="1.0.1" />
+    <PackageReference Include="DocumentFormat.OpenXml" Version="2.12.3" />
+    <PackageReference Include="JetBrains.Annotations" Version="2020.3.0" />
+    <PackageReference Include="Vostok.Logging.Abstractions" Version="1.0.20" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)'=='net471'">
+    <!-- we need to reference System.IO.Packaging directly since net46-targeted DocumentFormat.OpenXml package does not depend on it anymore (see https://github.com/OfficeDev/Open-XML-SDK/pull/783) -->
+    <PackageReference Include="System.IO.Packaging" Version="5.0.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/appveyor.yml b/appveyor.yml
index 90fe99e..308cdb7 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -43,7 +43,7 @@ deploy:
   - provider: NuGet
     server: https://nuget.org
     api_key:
-      secure: CQ4MGAZ56ySfApnQ2TeZhSYDs+yLTggiu+5EWVsJBF9xn/pKcOO9IelQM6qA0mbf
+      secure: y2RPf+gBBqffQVm8pg9qZcg99m7K8hsSa4z7VHvIE6t+kuO7r/oIqTVcryZzL93D
     skip_symbols: true
     on:
       SHOULD_PUBLISH_NUGET_PACKAGE: true
diff --git a/global.json b/global.json
index 6fcca7f..8c50959 100644
--- a/global.json
+++ b/global.json
@@ -1,5 +1,5 @@
 {
   "sdk": {
-    "version": "3.1.200"
+    "version": "5.0.103"
   }
-}
+}
\ No newline at end of file
diff --git a/version.json b/version.json
index 09a0a98..f7415dc 100644
--- a/version.json
+++ b/version.json
@@ -1,5 +1,4 @@
 {
-  "$schema": "https://raw.githubusercontent.com/AArnott/Nerdbank.GitVersioning/master/src/NerdBank.GitVersioning/version.schema.json",
   "version": "1.0",
   "assemblyVersion": {
     "precision": "build"