diff --git a/app/build.gradle b/app/build.gradle
index 851d411f..fb29324d 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "no.nordicsemi.android.nrftoolbox"
         minSdkVersion 18
         targetSdkVersion 22
-        versionCode 29
-        versionName "1.12.0"
+        versionCode 30
+        versionName "1.12.1"
     }
     buildTypes {
         release {
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 4c5104d3..acf0f856 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -23,8 +23,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
 	package="no.nordicsemi.android.nrftoolbox"
 	android:installLocation="auto"
-	android:versionCode="29"
-	android:versionName="1.12.0" >
+	android:versionCode="30"
+	android:versionName="1.12.1" >
 
 	<uses-sdk
 		android:minSdkVersion="18"
diff --git a/app/src/main/java/no/nordicsemi/android/nrftoolbox/gls/GlucoseManager.java b/app/src/main/java/no/nordicsemi/android/nrftoolbox/gls/GlucoseManager.java
index 6f20c3e9..d940b4c0 100644
--- a/app/src/main/java/no/nordicsemi/android/nrftoolbox/gls/GlucoseManager.java
+++ b/app/src/main/java/no/nordicsemi/android/nrftoolbox/gls/GlucoseManager.java
@@ -183,7 +183,7 @@ public class GlucoseManager extends BleManager<GlucoseManagerCallbacks> {
 				offset += 2;
 
 				final int year = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT16, offset);
-				final int month = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, offset + 2) + 1; // months are 1-based
+				final int month = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, offset + 2) - 1; // months are 1-based
 				final int day = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, offset + 3);
 				final int hours = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, offset + 4);
 				final int minutes = characteristic.getIntValue(BluetoothGattCharacteristic.FORMAT_UINT8, offset + 5);