diff --git a/CHANGELOG.md b/CHANGELOG.md
index 45d97767..a1a1decb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## Change Log
 
+### 0.20.6.1: April 09, 2024
+- Bug: Crash when activating countdown (#275)
+
 ### 0.20.6: April 01, 2024
 - Enhancement: New tracking of body photos (#268)
 - Enhancement: Added OpenScale weight import (#272)
diff --git a/app/build.gradle b/app/build.gradle
index ace49846..853b2017 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -6,10 +6,10 @@ android {
 
     defaultConfig {
         applicationId "com.easyfitness"
-        minSdkVersion 21
+        minSdkVersion 31
         targetSdkVersion 33
         versionCode 65
-        versionName "0.20.6"
+        versionName "0.20.6.1"
         vectorDrawables.useSupportLibrary true
     }
 
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 7c9854bc..ceae1aa4 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <uses-permission android:name="android.permission.SCHEDULE_EXACT_ALARM" />
     <uses-permission android:name="android.permission.VIBRATE" />
     <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"
diff --git a/app/src/main/java/com/easyfitness/CountdownDialogbox.java b/app/src/main/java/com/easyfitness/CountdownDialogbox.java
index 61fa5d7e..baa58280 100644
--- a/app/src/main/java/com/easyfitness/CountdownDialogbox.java
+++ b/app/src/main/java/com/easyfitness/CountdownDialogbox.java
@@ -76,16 +76,16 @@ public static void registerAlarm(Context context, int uniqueId, long triggerAlar
         Intent intent = new Intent(context, AlarmReceiver.class);
         intent.putExtra("playSoundAfterRestTimer", playSound);
         intent.putExtra("playVibrationAfterRestTimer", playVibration);
-        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, uniqueId, intent, 0);
+        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, uniqueId, intent, PendingIntent.FLAG_IMMUTABLE);
         AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
-        if (alarmManager != null) {
+        if (alarmManager != null && alarmManager.canScheduleExactAlarms()) {
             alarmManager.setExact(AlarmManager.ELAPSED_REALTIME_WAKEUP, triggerAlarmAt, pendingIntent);
         }
     }
 
     public static void unregisterAlarm(Context context, int uniqueId) {
         Intent alarmIntent = new Intent(context, AlarmReceiver.class);
-        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, uniqueId, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT);
+        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, uniqueId, alarmIntent, PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE);
         AlarmManager manager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
         manager.cancel(pendingIntent);
         pendingIntent.cancel();
diff --git a/app/src/main/res/values/about.xml b/app/src/main/res/values/about.xml
index 837cc18b..27a9148d 100644
--- a/app/src/main/res/values/about.xml
+++ b/app/src/main/res/values/about.xml
@@ -11,6 +11,8 @@
     <string name="email_url" translatable="false">fastnfitnessapp@gmail.com</string>
     <string name="revision_history_label" translatable="false">Revision History:</string>
     <string name="revision_history" translatable="false">\n
+0.20.6.1: April 09, 2024\n
+\t- Bug: Crash when activating countdown (#275)\n
 0.20.6: April 01, 2024\n
 \t- Enhancement: New tracking of body photos (#268)\n
 \t- Enhancement: Added OpenScale weight import (#272)\n