diff --git a/tests/FSharp.Analyzers.Tests/DoNotUseYourOwnRandomAnalyzerTests.fs b/tests/FSharp.Analyzers.Tests/DoNotUseYourOwnRandomAnalyzerTests.fs
index 75ce974..1114780 100644
--- a/tests/FSharp.Analyzers.Tests/DoNotUseYourOwnRandomAnalyzerTests.fs
+++ b/tests/FSharp.Analyzers.Tests/DoNotUseYourOwnRandomAnalyzerTests.fs
@@ -12,7 +12,7 @@ open Idura.FSharp.Analyzers.DoNotUseYourOwnRandomAnalyzer
 let setupContext () = async {
   let! opts =
           mkOptionsFromProject
-              "netstandard2.0" // ensures compatibility with both .NET Framework and newer .NET versions
+              "net9.0"
               []
           |> Async.AwaitTask
   return opts
diff --git a/tests/FSharp.Analyzers.Tests/MissingTypeAnnotationInlineDataAnalyzerTests.fs b/tests/FSharp.Analyzers.Tests/MissingTypeAnnotationInlineDataAnalyzerTests.fs
index b76429a..a0d7978 100644
--- a/tests/FSharp.Analyzers.Tests/MissingTypeAnnotationInlineDataAnalyzerTests.fs
+++ b/tests/FSharp.Analyzers.Tests/MissingTypeAnnotationInlineDataAnalyzerTests.fs
@@ -14,7 +14,7 @@ open Idura.FSharp.Analyzers.MissingTypeAnnotationInlineDataAnalyzer
 let setupContext () = async {
   let! opts =
           mkOptionsFromProject
-              "netstandard2.0" // ensures compatibility with both .NET Framework and newer .NET versions
+              "net9.0"
               [
                 {
                   Name = "xunit"
diff --git a/tests/FSharp.Analyzers.Tests/MissingUnitArgumentFactAnalyzerTests.fs b/tests/FSharp.Analyzers.Tests/MissingUnitArgumentFactAnalyzerTests.fs
index 948f332..e559678 100644
--- a/tests/FSharp.Analyzers.Tests/MissingUnitArgumentFactAnalyzerTests.fs
+++ b/tests/FSharp.Analyzers.Tests/MissingUnitArgumentFactAnalyzerTests.fs
@@ -12,7 +12,7 @@ open Idura.FSharp.Analyzers.MissingUnitArgumentFactAnalyzer
 let setupContext () = async {
   let! opts =
           mkOptionsFromProject
-              "netstandard2.0" // ensures compatibility with both .NET Framework and newer .NET versions
+              "net9.0"
               [
                 {
                   Name = "xunit"