diff --git a/test/EFCore.Jet.Design.FunctionalTest/EFCore.Jet.Design.FunctionalTests.csproj b/test/EFCore.Jet.Design.FunctionalTest/EFCore.Jet.Design.FunctionalTests.csproj
index 5fd07a3..53e9ef2 100644
--- a/test/EFCore.Jet.Design.FunctionalTest/EFCore.Jet.Design.FunctionalTests.csproj
+++ b/test/EFCore.Jet.Design.FunctionalTest/EFCore.Jet.Design.FunctionalTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
 
diff --git a/test/EFCore.Jet.FunctionalTests/EFCore.Jet.FunctionalTests.csproj b/test/EFCore.Jet.FunctionalTests/EFCore.Jet.FunctionalTests.csproj
index 17bc3b8..fba320b 100644
--- a/test/EFCore.Jet.FunctionalTests/EFCore.Jet.FunctionalTests.csproj
+++ b/test/EFCore.Jet.FunctionalTests/EFCore.Jet.FunctionalTests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
 
diff --git a/test/EFCore.Jet.Integration.Test/EFCore.Jet.Integration.Test.csproj b/test/EFCore.Jet.Integration.Test/EFCore.Jet.Integration.Test.csproj
index 6704674..9d4b834 100644
--- a/test/EFCore.Jet.Integration.Test/EFCore.Jet.Integration.Test.csproj
+++ b/test/EFCore.Jet.Integration.Test/EFCore.Jet.Integration.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <GenerateProgramFile>false</GenerateProgramFile>
diff --git a/test/EFCore.Jet.Tests/EFCore.Jet.Tests.csproj b/test/EFCore.Jet.Tests/EFCore.Jet.Tests.csproj
index 6136930..b7d60ee 100644
--- a/test/EFCore.Jet.Tests/EFCore.Jet.Tests.csproj
+++ b/test/EFCore.Jet.Tests/EFCore.Jet.Tests.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
 
diff --git a/test/System.Data.Jet.PerformanceTest/System.Data.Jet.PerformanceTest.csproj b/test/System.Data.Jet.PerformanceTest/System.Data.Jet.PerformanceTest.csproj
index 0edbb74..6729273 100644
--- a/test/System.Data.Jet.PerformanceTest/System.Data.Jet.PerformanceTest.csproj
+++ b/test/System.Data.Jet.PerformanceTest/System.Data.Jet.PerformanceTest.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
 
diff --git a/test/System.Data.Jet.Test/System.Data.Jet.Test.csproj b/test/System.Data.Jet.Test/System.Data.Jet.Test.csproj
index f5d0f36..33de282 100644
--- a/test/System.Data.Jet.Test/System.Data.Jet.Test.csproj
+++ b/test/System.Data.Jet.Test/System.Data.Jet.Test.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net461;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net461;netcoreapp2.1</TargetFrameworks>
     <IsPackable>false</IsPackable>
     <GenerateAssemblyInfo>false</GenerateAssemblyInfo>