diff --git a/src/Abstractions/test/Asp.Versioning.Abstractions.Tests/net6.0/ApiVersionTest.cs b/src/Abstractions/test/Asp.Versioning.Abstractions.Tests/net6.0/ApiVersionTest.cs
index b650303b..1d027d3e 100644
--- a/src/Abstractions/test/Asp.Versioning.Abstractions.Tests/net6.0/ApiVersionTest.cs
+++ b/src/Abstractions/test/Asp.Versioning.Abstractions.Tests/net6.0/ApiVersionTest.cs
@@ -6,6 +6,7 @@ public partial class ApiVersionTest
 {
     [Theory]
     [MemberData( nameof( FormatData ) )]
+    [AssumeCulture("en-us")]
     public void try_format_format_should_return_expected_string( string format, string text, string formattedString )
     {
         // arrange