diff --git a/PMF.Tests/PMF.Tests.csproj b/PMF.Tests/PMF.Tests.csproj
index 5b1791f..2f562b5 100644
--- a/PMF.Tests/PMF.Tests.csproj
+++ b/PMF.Tests/PMF.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
   </PropertyGroup>
diff --git a/PMF/PMF.csproj b/PMF/PMF.csproj
index 0f855f6..538a44d 100644
--- a/PMF/PMF.csproj
+++ b/PMF/PMF.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>netcoreapp2.0</TargetFramework>
     <RootNamespace>PMF</RootNamespace>
     <Version>0.0.1</Version>
     <AssemblyName>PMF</AssemblyName>
diff --git a/appveyor.yml b/appveyor.yml
index a930962..9e36acc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -11,28 +11,15 @@ environment:
   COVERALLS_REPO_TOKEN:
     secure: R+Jc9tMD0NdANAabzHqtZi4gymBCKRbKas0s0LEUQh5xOQLQDVZFUcMpxV3Yfd4c
 
-init:
-  # Good practise, because Windows line endings are different from Unix/Linux ones
-  - cmd: git config --global core.autocrlf true
-before_build:
-  # Display .NET Core version
-  - cmd: dotnet --version
-  # Display minimal restore text
-  - cmd: dotnet restore
 build_script:
-  # output will be in ./src/bin/debug/netcoreapp1.1/publish
-  - cmd: dotnet build
+  - dotnet build
 test_script:
 - ps: >-
     nuget install xunit.runner.console -OutputDirectory packages -Version 2.3.1
     
     nuget install OpenCover -OutputDirectory packages -Version 4.6.166
-    
     dotnet tool install coveralls.net --version 1.0.0-beta0002 --tool-path tools
-
-    .\packages\OpenCover.4.6.166\tools\OpenCover.Console.exe -register:user -target:dotnet.exe "-targetargs:"".\packages\xunit.runner.console.2.3.1\tools\netcoreapp3.1\xunit.console.dll"" ""src\PMF.Tests\bin\Release\netcoreapp3.1\PMF.Tests.dll"" -noshadow -appveyor" -filter:"+[PMFYea*]*" -oldStyle -output:opencoverCoverage.xml
+    .\packages\OpenCover.4.6.166\tools\OpenCover.Console.exe -register:user -target:dotnet.exe "-targetargs:"".\packages\xunit.runner.console.2.3.1\tools\netcoreapp2.0\xunit.console.dll"" ""PMF.Tests\bin\Release\netcoreapp2.0\PMF.Tests.dll"" -noshadow -appveyor" -filter:"+[GameOfLife*]*" -oldStyle -output:opencoverCoverage.xml
     
     $coveralls = ".\tools\csmacnz.coveralls.exe"
-    
-    & $coveralls --opencover -i opencoverCoverage.xml --repoToken $env:COVERALLS_REPO_TOKEN --commitId $env:APPVEYOR_REPO_COMMIT --commitBranch $env:APPVEYOR_REPO_BRANCH --commitAuthor $env:APPVEYOR_REPO_COMMIT_AUTHOR --commitEmail $env:APPVEYOR_REPO_COMMIT_AUTHOR_EMAIL --commitMessage $env:APPVEYOR_REPO_COMMIT_MESSAGE --jobId $env:APPVEYOR_JOB_ID
-
+    & $coveralls --opencover -i opencoverCoverage.xml --repoToken $env:COVERALLS_REPO_TOKEN --commitId $env:APPVEYOR_REPO_COMMIT --commitBranch $env:APPVEYOR_REPO_BRANCH --commitAuthor $env:APPVEYOR_REPO_COMMIT_AUTHOR --commitEmail $env:APPVEYOR_REPO_COMMIT_AUTHOR_EMAIL --commitMessage $env:APPVEYOR_REPO_COMMIT_MESSAGE --jobId $env:APPVEYOR_JOB_ID
\ No newline at end of file