diff --git a/docs/Programming_Guide.md b/docs/Programming_Guide.md
index c209ae7..21586c4 100644
--- a/docs/Programming_Guide.md
+++ b/docs/Programming_Guide.md
@@ -53,14 +53,11 @@ TIM-VX support the following data type:
 - INT8
 - INT16
 - INT32
-- INT64
 - UINT8
 - UINT16
 - UINT32
-- UINT64
 - FLOAT16
 - FLOAT32
-- FLOAT64
 
 # Graph lifecycle