diff --git a/include/WinStd/COM.h b/include/WinStd/COM.h
index 2a3e3add..1f11e79c 100644
--- a/include/WinStd/COM.h
+++ b/include/WinStd/COM.h
@@ -274,7 +274,7 @@ namespace winstd
         ///
         /// \return Duplicated string
         ///
-        /// \sa [SysAllocString function](https://msdn.microsoft.com/en-us/library/windows/desktop/ms221458.aspx)
+        /// \sa [SysAllocStringLen function](https://learn.microsoft.com/en-us/windows/win32/api/oleauto/nf-oleauto-sysallocstringlen)
         ///
         handle_type duplicate_internal(_In_ handle_type h) const override
         {
@@ -1075,7 +1075,7 @@ namespace winstd
         ///
         /// \return Duplicated array
         ///
-        /// \sa [SysAllocString function](https://msdn.microsoft.com/en-us/library/windows/desktop/ms221458.aspx)
+        /// \sa [SafeArrayCopy function](https://learn.microsoft.com/en-us/windows/win32/api/oleauto/nf-oleauto-safearraycopy)
         ///
         handle_type duplicate_internal(_In_ handle_type h) const override
         {