diff --git a/mingw-w64-headers/include/memoryapi.h b/mingw-w64-headers/include/memoryapi.h
index 152671c..889c2a5 100644
--- a/mingw-w64-headers/include/memoryapi.h
+++ b/mingw-w64-headers/include/memoryapi.h
@@ -29,10 +29,14 @@
 #endif
 
 #if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && _WIN32_WINNT >= _WIN32_WINNT_WIN10) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
-    WINBASEAPI LPVOID WINAPI VirtualAlloc (LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);
-    WINBASEAPI LPVOID WINAPI VirtualAllocEx (HANDLE hProcess, LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);
     WINBASEAPI WINBOOL WINAPI VirtualFree (LPVOID lpAddress, SIZE_T dwSize, DWORD dwFreeType);
 #endif
+#if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && NTDDI_VERSION >= NTDDI_WIN10_19H1) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
+    WINBASEAPI LPVOID WINAPI VirtualAlloc (LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);
+#endif
+#if (WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP) && NTDDI_VERSION >= NTDDI_WIN10_VB) || WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_DESKTOP)
+    WINBASEAPI LPVOID WINAPI VirtualAllocEx (HANDLE hProcess, LPVOID lpAddress, SIZE_T dwSize, DWORD flAllocationType, DWORD flProtect);
+#endif
 
 #if WINAPI_FAMILY_PARTITION (WINAPI_PARTITION_APP)