diff --git a/src/Microsoft.OpenApi.Readers/V3/OpenApiSchemaDeserializer.cs b/src/Microsoft.OpenApi.Readers/V3/OpenApiSchemaDeserializer.cs
index 87769c7c9..f4499cdf8 100644
--- a/src/Microsoft.OpenApi.Readers/V3/OpenApiSchemaDeserializer.cs
+++ b/src/Microsoft.OpenApi.Readers/V3/OpenApiSchemaDeserializer.cs
@@ -27,7 +27,7 @@ internal static partial class OpenApiV3Deserializer
             {
                 "multipleOf", (o, n) =>
                 {
-                    o.MultipleOf = decimal.Parse(n.GetScalarValue(), CultureInfo.InvariantCulture);
+                    o.MultipleOf = decimal.Parse(n.GetScalarValue(), NumberStyles.Float, CultureInfo.InvariantCulture); 
                 }
             },
             {