diff --git a/.appveyor-mac.yml b/.appveyor-mac.yml
index dfa88c517..64507fa8c 100644
--- a/.appveyor-mac.yml
+++ b/.appveyor-mac.yml
@@ -18,7 +18,7 @@ build_script:
 test_script:
 # TODO: Track down why macos fails to determine the local interface for IPv6 destinations on approx. every second test run.
 #       possibly to do with different vm configs but same thing is happening on both appveyor and GitHub Actions CI's.
-- dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release --filter "FullyQualifiedName!=SIPSorcery.SIP.UnitTests.SIPTransportUnitTest.IPv4TlsLoopbackSendReceiveTest&FullyQualifiedName!=SIPSorcery.SIP.UnitTests.SIPTransportUnitTest.IPv6TlsLoopbackSendReceiveTest&FullyQualifiedName!=SIPSorcery.Sys.UnitTests.NetServicesUnitTest.GetLocalForInternetIPv6AdressUnitTest&FullyQualifiedName!=SIPSorcery.Net.UnitTests.DtlsUtilsUnitTest.LoadSecretFromArchiveUnitTest&FullyQualifiedName!=SIPSorcery.Net.UnitTests.RtpIceChannelUnitTest.CheckPeerReflexiveReplacedByHostCandidatesUnitTest&FullyQualifiedName!=CheckSuccessfulConnectionForHostCandidatesUnitTest"
+- dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release --framework netcoreapp3.1
 #on_finish:
 #  - sh: export APPVEYOR_SSH_BLOCK=true
 #  - sh: curl -sflL 'https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-ssh.sh' | bash -e -
diff --git a/.appveyor-ubuntu.yml b/.appveyor-ubuntu.yml
index e20d3df7b..2ae49031d 100644
--- a/.appveyor-ubuntu.yml
+++ b/.appveyor-ubuntu.yml
@@ -14,9 +14,10 @@ init:
 build_script:
 - uname -a
 - dotnet --version
-#- dotnet build src/SIPSorcery.sln --framework netcoreapp3.1
 test_script:
-- dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release
+  - sh:
+     dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release --framework netcoreapp3.1
+     dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release --framework net5
 #on_finish:
 #  - sh: export APPVEYOR_SSH_BLOCK=true
 #  - sh: curl -sflL 'https://raw.githubusercontent.com/appveyor/ci/master/scripts/enable-ssh.sh' | bash -e -
\ No newline at end of file
diff --git a/.github/workflows/sipsorcery-core-mac.yml b/.github/workflows/sipsorcery-core-mac.yml
index 5a8d7e36a..c95d85e07 100644
--- a/.github/workflows/sipsorcery-core-mac.yml
+++ b/.github/workflows/sipsorcery-core-mac.yml
@@ -17,6 +17,6 @@ jobs:
     - name: Install dependencies
       run: dotnet restore src/SIPSorcery.sln 
     - name: Build
-      run: dotnet build src/SIPSorcery.sln -c Release --no-restore --framework ${{ matrix.framework }}   
+      run: dotnet build src/SIPSorcery.sln -c Release --framework ${{ matrix.framework }}   
     - name: Unit tests
       run: dotnet test test/unit/SIPSorcery.UnitTests.csproj -c Release --no-build --framework ${{ matrix.framework }}
\ No newline at end of file