diff --git a/MdePkg/Include/IndustryStandard/SmBios.h b/MdePkg/Include/IndustryStandard/SmBios.h
index ea23685851..f2db11f947 100644
--- a/MdePkg/Include/IndustryStandard/SmBios.h
+++ b/MdePkg/Include/IndustryStandard/SmBios.h
@@ -1718,7 +1718,9 @@ typedef enum {
   MemoryTypeLpddr4                         = 0x1E,
   MemoryTypeLogicalNonVolatileDevice       = 0x1F,
   MemoryTypeHBM                            = 0x20,
-  MemoryTypeHBM2                           = 0x21
+  MemoryTypeHBM2                           = 0x21,
+  MemoryTypeDdr5                           = 0x22,
+  MemoryTypeLpddr5                         = 0x23
 } MEMORY_DEVICE_TYPE;
 
 ///