diff --git a/PCF8574.cpp b/PCF8574.cpp
index c180bb8..e1217b9 100644
--- a/PCF8574.cpp
+++ b/PCF8574.cpp
@@ -2,12 +2,13 @@
 //    FILE: PCF8574.cpp
 //  AUTHOR: Rob Tillaart
 //    DATE: 02-febr-2013
-// VERSION: 0.2.3
+// VERSION: 0.2.4
 // PURPOSE: Arduino library for PCF8574 - I2C IO expander
 //     URL: https://github.com/RobTillaart/PCF8574
 //          http://forum.arduino.cc/index.php?topic=184800
 //
 // HISTORY:
+// 0.2.4  2020-12-17  fix #6 tag problem 0.2.3
 // 0.2.3  2020-12-14  fix #6 readButton8 ambiguity
 // 0.2.2  2020-12-07  add Arduino-ci + start unit test + Wire.h in PCF8574.h
 // 0.2.1  2020-06-19  fix library.json
diff --git a/PCF8574.h b/PCF8574.h
index 8143d66..a2a2894 100644
--- a/PCF8574.h
+++ b/PCF8574.h
@@ -3,7 +3,7 @@
 //    FILE: PCF8574.H
 //  AUTHOR: Rob Tillaart
 //    DATE: 02-febr-2013
-// VERSION: 0.2.3
+// VERSION: 0.2.4
 // PURPOSE: Arduino library for PCF8574 - I2C IO expander
 //     URL: https://github.com/RobTillaart/PCF8574
 //          http://forum.arduino.cc/index.php?topic=184800
@@ -15,7 +15,7 @@
 #include "Arduino.h"
 #include "Wire.h"
 
-#define PCF8574_LIB_VERSION "0.2.3"
+#define PCF8574_LIB_VERSION "0.2.4"
 
 #define PCF8574_OK          0x00
 #define PCF8574_PIN_ERROR   0x81
diff --git a/library.json b/library.json
index dd09b5d..1b3ef79 100644
--- a/library.json
+++ b/library.json
@@ -15,7 +15,7 @@
     "type": "git",
     "url": "https://github.com/RobTillaart/PCF8574.git"
   },
-  "version":"0.2.3",
+  "version":"0.2.4",
   "frameworks": "arduino",
   "platforms": "*"
 }
diff --git a/library.properties b/library.properties
index 335533d..bdedb9b 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=PCF8574
-version=0.2.3
+version=0.2.4
 author=Rob Tillaart <rob.tillaart@gmail.com>
 maintainer=Rob Tillaart <rob.tillaart@gmail.com>
 sentence=Arduino library for PCF8574 - I2C IO expander