diff --git a/library.properties b/library.properties
index 034b3d6..2ff022e 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=CLAIRE
-version=0.1.14
+version=0.1.15
 author=Falke Carlsen <falkeboc@cs.aau.dk>
 maintainer=Falke Carlsen <falkeboc@cs.aau.dk>
 sentence=API to interface with CLAIRE water management demonstrator at DEIS-AAU.
diff --git a/py_driver/driver.py b/py_driver/driver.py
index 9515a03..0f2dfcc 100644
--- a/py_driver/driver.py
+++ b/py_driver/driver.py
@@ -10,7 +10,7 @@
 
 IMMEDIATE_OUTPUT = True
 TAG = "DRIVER:"
-CLAIRE_VERSION = "v0.1.14"
+CLAIRE_VERSION = "v0.1.15"
 CLAIRE_READY_SIGNAL = "CLAIRE-READY"
 TUBE_MAX_LEVEL = 900
 DEBUG = True
diff --git a/src/Claire.cpp b/src/Claire.cpp
index 346895e..2c85f44 100644
--- a/src/Claire.cpp
+++ b/src/Claire.cpp
@@ -45,7 +45,7 @@ bool Claire::begin() {
     if (sensors[i].pin == -1) {
       Serial.println("ERROR: Sensor PWM pin unset for resource: " + String(sensors[i].name) + " pin: " + String(sensors[i].pin));
     } else {
-      pinMode(sensors[i].pin, INPUT);
+      pinMode(sensors[i].pin, INPUT_PULLUP);
     }
 
   }
diff --git a/src/Claire.h b/src/Claire.h
index f216b1a..cf24b03 100644
--- a/src/Claire.h
+++ b/src/Claire.h
@@ -4,7 +4,7 @@
 #include <Arduino.h>
 #include <EEPROM.h>
 
-#define VERSION "0.1.14"
+#define VERSION "0.1.15"
 
 #define OUTPUT_GPIO_MIN 2
 #define OUTPUT_GPIO_MAX 7