diff --git a/components/esp_system/port/soc/esp32c5/Kconfig.cpu b/components/esp_system/port/soc/esp32c5/Kconfig.cpu
index 95c3b92cbcd..6804a0226cf 100644
--- a/components/esp_system/port/soc/esp32c5/Kconfig.cpu
+++ b/components/esp_system/port/soc/esp32c5/Kconfig.cpu
@@ -21,12 +21,8 @@ choice ESP_DEFAULT_CPU_FREQ_MHZ
         depends on !SECURE_FLASH_ENC_ENABLED
         bool "240 MHz"
         help
-            When 240MHz is selected, esp_flash_write_encrypted() will automatically limit CPU frequency during
-            execution:
-            - v1.2 and above chips: limited to 160MHz
-            - v1.0 and below chips: limited to 80MHz
-            When 160MHz or lower is selected, no frequency limiting occurs during encrypted writes. Please refer to
-            the ESP32-C5 SoC Errata document for more details.
+            Due to known silicon issue, CPU frequency will be fixed to 160 MHz when flash encryption is enabled. Please
+            refer to the ESP32-C5 SoC Errata document for more details.
 endchoice
 
 config ESP_DEFAULT_CPU_FREQ_MHZ