diff --git a/library.json b/library.json
index 8c51e55..4a4294f 100644
--- a/library.json
+++ b/library.json
@@ -13,7 +13,7 @@
         "M5Unified": "*",
         "M5GFX": "*"
     },
-    "version": "1.2.0",
+    "version": "1.2.1",
     "frameworks": "arduino",
     "platforms": "espressif32"
 }
\ No newline at end of file
diff --git a/library.properties b/library.properties
index 87c2f0f..eefade9 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=M5StamPLC
-version=1.2.0
+version=1.2.1
 author=M5Stack
 maintainer=M5Stack
 sentence=M5StamPLC is a library for M5StamPLC
diff --git a/src/M5StamPLC.cpp b/src/M5StamPLC.cpp
index b8a76c7..ef937e5 100644
--- a/src/M5StamPLC.cpp
+++ b/src/M5StamPLC.cpp
@@ -61,15 +61,15 @@ void M5_STAMPLC::io_expander_a_init()
 
     // Status light init
     ioe.setDirection(4, true);
-    ioe.setPullMode(4, false);
+    ioe.setPullMode(4, m5::IOExpander_Base::pull_down);
     ioe.setHighImpedance(4, true);
 
     ioe.setDirection(5, true);
-    ioe.setPullMode(5, false);
+    ioe.setPullMode(5, m5::IOExpander_Base::pull_down);
     ioe.setHighImpedance(5, true);
 
     ioe.setDirection(6, true);
-    ioe.setPullMode(6, false);
+    ioe.setPullMode(6, m5::IOExpander_Base::pull_down);
     ioe.setHighImpedance(6, true);
 
     ioe.resetIrq();
diff --git a/src/modules/M5StamPLC_AC.cpp b/src/modules/M5StamPLC_AC.cpp
index 2d70426..af20e81 100644
--- a/src/modules/M5StamPLC_AC.cpp
+++ b/src/modules/M5StamPLC_AC.cpp
@@ -32,13 +32,13 @@ bool M5StamPLC_AC::begin()
 
     // AC relay
     _ioe->setDirection(_pin_relay, true);
-    _ioe->setPullMode(_pin_relay, false);
+    _ioe->setPullMode(_pin_relay, m5::IOExpander_Base::pull_down);
     _ioe->setHighImpedance(_pin_relay, false);
 
     // Status light
     auto setup_status_light_pin = [](m5::PI4IOE5V6408_Class* ioe, uint8_t pin) {
         ioe->setDirection(pin, true);
-        ioe->setPullMode(pin, true);
+        ioe->setPullMode(pin, m5::IOExpander_Base::pull_up);
         ioe->setHighImpedance(pin, false);
         ioe->digitalWrite(pin, true);
     };