diff --git a/components/driver/test/adc_dma_test/test_esp32.c b/components/driver/test/adc_dma_test/test_esp32.c
index a555449a5b..4ece7a4e70 100644
--- a/components/driver/test/adc_dma_test/test_esp32.c
+++ b/components/driver/test/adc_dma_test/test_esp32.c
@@ -109,7 +109,7 @@ static esp_err_t adc_dma_data_check(uint8_t *buf, int length, int ideal_level)
         } else if (ideal_level == 0) {  // low level 0v
             TEST_ASSERT_LESS_THAN( 10, p->type1.data );
         } else if (ideal_level == 2) {  // middle level 1.4v
-            TEST_ASSERT_INT_WITHIN( 128, 1666, p->type1.data );
+            TEST_ASSERT_INT_WITHIN( 128, 1586, p->type1.data );
         } else if (ideal_level == 3) {  // normal level
         } else { // no check
         }
@@ -162,4 +162,4 @@ TEST_CASE("ADC DMA read", "[adc dma]")
     example_i2s_deinit();
 }
 
-#endif // !DISABLED_FOR_TARGETS(ESP8266, ESP32S2)
\ No newline at end of file
+#endif // !DISABLED_FOR_TARGETS(ESP8266, ESP32S2)