diff --git a/app/build.gradle b/app/build.gradle
index 17020f7..0178e2b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,14 +4,14 @@ apply plugin: 'kotlin-parcelize'
 apply plugin: 'androidx.navigation.safeargs.kotlin'
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
 
     defaultConfig {
         applicationId 'org.y20k.trackbook'
         minSdkVersion 25
-        targetSdkVersion 30
-        versionCode 48
-        versionName '2.1.0'
+        targetSdkVersion 31
+        versionCode 49
+        versionName '2.1.1'
         resConfigs "en", "da", "de", "fr", "hr", "id", "it", "ja", "nb-rNO", "nl", "pl", "pt-rBR", "ru", "sv", "tr", "zh-rCN"
     }
 
@@ -51,7 +51,7 @@ android {
 
 dependencies {
     // Kotlin
-    def coroutinesVersion = "1.5.0"
+    def coroutinesVersion = "1.5.2"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutinesVersion"
     implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutinesVersion"
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8efc390..d2b23a3 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -27,7 +27,9 @@
         android:theme="@style/AppTheme">
 
         <!-- MAIN ACTIVITY -->
-        <activity android:name=".MainActivity">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -51,8 +53,9 @@
             android:name=".TrackingToggleTileService"
             android:label="@string/quick_settings_tile_title_default"
             android:icon="@drawable/ic_notification_icon_small_24dp"
-            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
-            <intent-filter>
+            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE"
+            android:exported="true">
+        <intent-filter>
                 <action android:name="android.service.quicksettings.action.QS_TILE" />
             </intent-filter>
         </service>
diff --git a/app/src/main/java/org/y20k/trackbook/MapFragment.kt b/app/src/main/java/org/y20k/trackbook/MapFragment.kt
index 50206b7..8154ad0 100644
--- a/app/src/main/java/org/y20k/trackbook/MapFragment.kt
+++ b/app/src/main/java/org/y20k/trackbook/MapFragment.kt
@@ -210,7 +210,6 @@ class MapFragment : Fragment(), YesNoDialog.YesNoDialogListener, MapOverlayHelpe
     private fun startTracking() {
         // request activity recognition permission on Android Q+ if denied
         if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q && ContextCompat.checkSelfPermission(activity as Context, Manifest.permission.ACTIVITY_RECOGNITION) == PackageManager.PERMISSION_DENIED) {
-            LogHelper.e(TAG, "permissions resume DING") // todo remove
             startTrackingPermissionLauncher.launch(Manifest.permission.ACTIVITY_RECOGNITION)
         } else {
             // start service via intent so that it keeps running after unbind
diff --git a/app/src/main/java/org/y20k/trackbook/helpers/DateTimeHelper.kt b/app/src/main/java/org/y20k/trackbook/helpers/DateTimeHelper.kt
index cfbc43c..c4d4591 100644
--- a/app/src/main/java/org/y20k/trackbook/helpers/DateTimeHelper.kt
+++ b/app/src/main/java/org/y20k/trackbook/helpers/DateTimeHelper.kt
@@ -58,7 +58,7 @@ object DateTimeHelper {
 
     /* Create sortable string for date - used for filenames  */
     fun convertToSortableDateString(date: Date): String {
-        val dateFormat: SimpleDateFormat = SimpleDateFormat("yyyy-MM-dd-HH-mm-ss", Locale.US)
+        val dateFormat: SimpleDateFormat = SimpleDateFormat("yyyy-MM-dd-HH-mm-ss-SSS", Locale.US)
         return dateFormat.format(date)
     }
 
diff --git a/app/src/main/java/org/y20k/trackbook/helpers/NotificationHelper.kt b/app/src/main/java/org/y20k/trackbook/helpers/NotificationHelper.kt
index 23157bc..5e6edbe 100644
--- a/app/src/main/java/org/y20k/trackbook/helpers/NotificationHelper.kt
+++ b/app/src/main/java/org/y20k/trackbook/helpers/NotificationHelper.kt
@@ -107,13 +107,13 @@ class NotificationHelper(private val trackerService: TrackerService) {
     /* Notification pending intents */
     private val stopActionPendingIntent = PendingIntent.getService(
         trackerService,14,
-        Intent(trackerService, TrackerService::class.java).setAction(Keys.ACTION_STOP),0)
+        Intent(trackerService, TrackerService::class.java).setAction(Keys.ACTION_STOP),PendingIntent.FLAG_IMMUTABLE)
     private val resumeActionPendingIntent = PendingIntent.getService(
         trackerService, 16,
-        Intent(trackerService, TrackerService::class.java).setAction(Keys.ACTION_RESUME),0)
+        Intent(trackerService, TrackerService::class.java).setAction(Keys.ACTION_RESUME),PendingIntent.FLAG_IMMUTABLE)
     private val showActionPendingIntent: PendingIntent? = TaskStackBuilder.create(trackerService).run {
         addNextIntentWithParentStack(Intent(trackerService, MainActivity::class.java))
-        getPendingIntent(10, PendingIntent.FLAG_UPDATE_CURRENT)
+        getPendingIntent(10, PendingIntent.FLAG_IMMUTABLE)
     }
 
 
diff --git a/build.gradle b/build.gradle
index e80e7d2..f77b3fb 100644
--- a/build.gradle
+++ b/build.gradle
@@ -10,7 +10,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:7.0.2'
+        classpath 'com.android.tools.build:gradle:7.0.3'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$navigation_version"