diff --git a/src/WireMock.Net.OpenApiParser/Settings/WireMockOpenApiParserDynamicExampleValues.cs b/src/WireMock.Net.OpenApiParser/Settings/WireMockOpenApiParserDynamicExampleValues.cs
index 26e87a5d7..988a9065b 100644
--- a/src/WireMock.Net.OpenApiParser/Settings/WireMockOpenApiParserDynamicExampleValues.cs
+++ b/src/WireMock.Net.OpenApiParser/Settings/WireMockOpenApiParserDynamicExampleValues.cs
@@ -26,6 +26,6 @@ public class WireMockOpenApiParserDynamicExampleValues : IWireMockOpenApiParserE
         /// <inheritdoc />
         public object Object { get; set; } = "example-object";
         /// <inheritdoc />
-        public string String { get { return RandomizerFactory.GetRandomizer(new FieldOptionsTextWords()).Generate() ?? "example-string"; } set { } }
+        public string String { get { return RandomizerFactory.GetRandomizer(new FieldOptionsTextRegex { Pattern = @"^[0-9]{2}[A-Z]{5}[0-9]{2}" }).Generate() ?? "example-string"; } set { } }
     }
 }
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