diff --git a/OpenMcdf.Ole/ITypedPropertyValue.cs b/OpenMcdf.Ole/ITypedPropertyValue.cs
index a2d0039..09855ab 100644
--- a/OpenMcdf.Ole/ITypedPropertyValue.cs
+++ b/OpenMcdf.Ole/ITypedPropertyValue.cs
@@ -1,6 +1,6 @@
 namespace OpenMcdf.Ole;
 
-public enum PropertyDimensions
+internal enum PropertyDimensions
 {
     IsScalar,
     IsVector,