diff --git a/appveyor.yml b/appveyor.yml
index bfbe4fb..f1d2bdc 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -56,13 +56,13 @@ artifacts:
    type: NuGetPackage
 clone_depth: 1
 test_script:
-  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.Generator.Tests\bin\Release\netcoreapp2.1\CapnpC.CSharp.Generator.Tests.dll
+  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.Generator.Tests\bin\Release\netcoreapp3.0\CapnpC.CSharp.Generator.Tests.dll
   - cmd: cd %APPVEYOR_BUILD_FOLDER%\chocolatey\install
   - cmd: choco install capnpc-csharp --source=".;https://chocolatey.org/api/v2" --force -y
   - cmd: cd %APPVEYOR_BUILD_FOLDER%\install-test
   - cmd: compile-test
   - cmd: cd %APPVEYOR_BUILD_FOLDER%
-  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.Generator.Tests\bin\Release\netcoreapp2.1\CapnpC.CSharp.Generator.Tests.dll
+  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.Generator.Tests\bin\Release\netcoreapp3.0\CapnpC.CSharp.Generator.Tests.dll
   - cmd: choco uninstall capnpc-csharp -y
   - cmd: cd %APPVEYOR_BUILD_FOLDER%\install-test
   - cmd: notinstalled-test
@@ -73,7 +73,7 @@ test_script:
   - cmd: choco uninstall capnpc-csharp-win-x86 -y
   - cmd: notinstalled-test
   - cmd: cd %APPVEYOR_BUILD_FOLDER%
-  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.MsBuild.Generation.Tests\bin\Release\netcoreapp2.1\CapnpC.CSharp.MsBuild.Generation.Tests.dll
+  - cmd: vstest.console /logger:Appveyor /inIsolation CapnpC.CSharp.MsBuild.Generation.Tests\bin\Release\netcoreapp3.0\CapnpC.CSharp.MsBuild.Generation.Tests.dll
   - cmd: msbuild -t:restore ./MsBuildGenerationTest/MsBuildGenerationTest.csproj /p:Configuration="Debug" /p:PackageReferenceVersion="%APPVEYOR_BUILD_VERSION%"
   - cmd: msbuild ./MsBuildGenerationTest/MsBuildGenerationTest.sln /p:Configuration="Debug" /p:PackageReferenceVersion="%APPVEYOR_BUILD_VERSION%"
   - cmd: vstest.console /logger:Appveyor /inIsolation Capnp.Net.Runtime.Tests\bin\Debug\net471\Capnp.Net.Runtime.Tests.Std20.dll