diff --git a/src/internal/NeoEsp32RmtMethod.h b/src/internal/NeoEsp32RmtMethod.h
index f05c120..d584cc3 100644
--- a/src/internal/NeoEsp32RmtMethod.h
+++ b/src/internal/NeoEsp32RmtMethod.h
@@ -50,6 +50,12 @@ extern "C"
 #include <driver/rmt.h>
 }
 
+#if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(4, 3, 0)
+#define NEOPIXELBUS_RMT_INT_FLAGS (ESP_INTR_FLAG_LOWMED)
+#else
+#define NEOPIXELBUS_RMT_INT_FLAGS (ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_LEVEL1)
+#endif
+
 class NeoEsp32RmtSpeed
 {
 public:
@@ -554,7 +560,7 @@ public:
         config.clk_div = T_SPEED::RmtClockDivider;
 
         ESP_ERROR_CHECK(rmt_config(&config));
-        ESP_ERROR_CHECK(rmt_driver_install(_channel.RmtChannelNumber, 0, ESP_INTR_FLAG_IRAM | ESP_INTR_FLAG_LEVEL1));
+        ESP_ERROR_CHECK(rmt_driver_install(_channel.RmtChannelNumber, 0, NEOPIXELBUS_RMT_INT_FLAGS));
         ESP_ERROR_CHECK(rmt_translator_init(_channel.RmtChannelNumber, T_SPEED::Translate));
     }