diff --git a/src/RfidPn5180.cpp b/src/RfidPn5180.cpp
index bc43fab..7170e1d 100644
--- a/src/RfidPn5180.cpp
+++ b/src/RfidPn5180.cpp
@@ -313,7 +313,7 @@ extern unsigned long Rfid_LastRfidCheckTimestamp;
                 Serial.println(F("switch to low power card detection: success"));
                 // configure wakeup pin for deep-sleep wake-up, use ext1
                 #if (RFID_IRQ >= 0 && RFID_IRQ <= 39)
-                    esp_sleep_enable_ext1_wakeup((1ULL << (RFID_IRQ)), ESP_EXT1_WAKEUP_ANY_HIGH);
+                    esp_sleep_enable_ext1_wakeup((1ULL << (RFID_IRQ)), ESP_EXT1_WAKEUP_ALL_LOW);
                 #endif
                 // freeze pin states in deep sleep
                 gpio_hold_en(gpio_num_t(RFID_CS));  // CS/NSS
@@ -342,7 +342,7 @@ extern unsigned long Rfid_LastRfidCheckTimestamp;
                     Log_Println((char *) FPSTR(lowPowerCardSuccess), LOGLEVEL_INFO);
                     // configure wakeup pin for deep-sleep wake-up, use ext1
                     #if (RFID_IRQ >= 0 && RFID_IRQ <= 39)
-                        esp_sleep_enable_ext1_wakeup((1ULL << (RFID_IRQ)), ESP_EXT1_WAKEUP_ANY_HIGH);
+                        esp_sleep_enable_ext1_wakeup((1ULL << (RFID_IRQ)), ESP_EXT1_WAKEUP_ALL_LOW);
                     #endif
                     // freeze pin states in deep sleep
                     gpio_hold_en(gpio_num_t(RFID_CS));  // CS/NSS
diff --git a/src/System.cpp b/src/System.cpp
index cc5907a..815c97b 100644
--- a/src/System.cpp
+++ b/src/System.cpp
@@ -214,7 +214,9 @@ void System_DeepSleepManager(void) {
         digitalWrite(POWER, LOW);
         delay(200);
         Rfid_Exit();
-        Port_Exit();
+        #ifdef PORT_EXPANDER_ENABLE
+            Port_Exit();
+        #endif
         Serial.println(F("deep-sleep, good night......."));
         esp_deep_sleep_start();
     }
diff --git a/src/revision.h b/src/revision.h
index 3fec6f4..129cf7a 100644
--- a/src/revision.h
+++ b/src/revision.h
@@ -1,4 +1,4 @@
 #ifndef __REVISION_H__
     #define __REVISION_H__
-    constexpr const char softwareRevision[] PROGMEM = "Software-revision: 20211014-1";
+    constexpr const char softwareRevision[] PROGMEM = "Software-revision: 20211014-2";
 #endif
\ No newline at end of file