diff --git a/README.md b/README.md
index fb1005a4150b70af557d24fd644b243745edffa3..7362c99d80fce93baf9d302fb8e1ddc703d3f2aa 100644
--- a/README.md
+++ b/README.md
@@ -77,6 +77,7 @@ RT-Thread supports many architectures, and has covered the major architectures i
 - **ARM Cortex-M4**：manufacturers like ST、Nuvton、NXP、GigaDevice、Realtek、Ambiq Micro, ect.
 - **ARM Cortex-M7**：manufacturers like ST、NXP
 - **ARM Cortex-M23**：manufacturers like GigaDevice
+- **ARM Cortex-M33**：manufacturers like ST
 - **ARM Cortex-R4**
 - **ARM Cortex-A8/A9**：manufacturers like NXP
 - **ARM7**：manufacturers like Samsung
diff --git a/README_zh.md b/README_zh.md
index 0405adf9c585d014e15b3b3aed89d43866824532..da67724525dc69c998d0a6727e99cf0bc3349b73 100644
--- a/README_zh.md
+++ b/README_zh.md
@@ -68,35 +68,21 @@ Env 是RT-Thread推出的开发辅助工具，针对基于RT-Thread操作系统
 RT-Thread RTOS 支持许多架构，并且已经涵盖了当前应用中的主要架构。涉及的架构和芯片制造商有：
 
 - ARM Cortex-M0/M0+：如芯片制造商 ST
-
 - ARM Cortex-M3：如芯片制造商 ST、全志、灵动等.
-
 - ARM Cortex-M4：如芯片制造商 ST、Nuvton、NXP、GigaDevice、Realtek、Ambiq Micro等
-
 - ARM Cortex-M7：如芯片制造商 ST、NXP
-
 - ARM Cortex-M23：如芯片制造商 GigaDevice
-
+- ARM Cortex-M33：如芯片制造商 ST
 - ARM Cortex-R4
-
 - ARM Cortex-A8/A9：如芯片制造商 NXP
-
 - ARM7：如芯片制造商Samsung
-
 - ARM9：如芯片制造商Allwinner、Xilinx 、GOKE
-
 - ARM11：如芯片制造商Fullhan
-
 - MIPS32：如芯片制造商loongson、Ingenic
-
 - RISC-V：如芯片制造商Hifive、Kendryte、[芯来Nuclei](https://nucleisys.com/)
-
 - ARC：如芯片制造商SYNOPSYS
-
 - DSP：如芯片制造商 TI
-
 - C-Sky
-
 - x86