diff --git a/QueryBuilder.Tests/ParameterTypeTests.cs b/QueryBuilder.Tests/ParameterTypeTests.cs
index 095a6e53..37c9fc26 100644
--- a/QueryBuilder.Tests/ParameterTypeTests.cs
+++ b/QueryBuilder.Tests/ParameterTypeTests.cs
@@ -22,9 +22,9 @@ public class ParameterTypeGenerator : IEnumerable<object[]>
             private readonly List<object[]> _data = new List<object[]>
             {
                 new object[] {"1", 1},
-                new object[] {Convert.ToSingle("10.5", CultureInfo.InvariantCulture).ToString(), 10.5},
+                new object[] {"10.5", 10.5},
                 new object[] {"-2", -2},
-                new object[] {Convert.ToSingle("-2.8", CultureInfo.InvariantCulture).ToString(), -2.8},
+                new object[] {"-2.8", -2.8},
                 new object[] {"cast(1 as bit)", true},
                 new object[] {"cast(0 as bit)", false},
                 new object[] {"'2018-10-28 19:22:00'", new DateTime(2018, 10, 28, 19, 22, 0)},