diff --git a/src/Moq/Extensions.cs b/src/Moq/Extensions.cs
index 4a09e6309..0cdfd2ef6 100644
--- a/src/Moq/Extensions.cs
+++ b/src/Moq/Extensions.cs
@@ -519,7 +519,7 @@ public static Type SubstituteTypeMatchers(this Type type, Type other)
             return type;
         }
 
-        private static readonly ConcurrentDictionary<Tuple<Type, Type>, InterfaceMapping> mappingsCache = new ();
+        private static readonly ConcurrentDictionary<Tuple<Type, Type>, InterfaceMapping> mappingsCache = new();
 
         private static InterfaceMapping GetInterfaceMap(Type type, Type interfaceType)
         {