diff --git a/app/build.gradle b/app/build.gradle
index 44bafc62..472d6a4e 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,11 +3,11 @@ apply plugin: 'com.android.application'
 def lifecycleVersion = '2.2.0'
 
 android {
-    compileSdkVersion 29
+    compileSdkVersion 32
     defaultConfig {
         applicationId "cz.martykan.forecastie"
         minSdkVersion 15
-        targetSdkVersion 29
+        targetSdkVersion 32
         versionCode 74
         versionName "1.22.1"
     }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 6c4a2411..978b9cc7 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -18,6 +18,7 @@
         android:supportsRtl="true">
 
         <activity
+            android:exported="true"
             android:name=".activities.SplashActivity"
             android:theme="@style/SplashTheme">
             <intent-filter>
@@ -54,7 +55,7 @@
 
         <!-- Receivers -->
 
-        <receiver android:name=".widgets.ExtensiveWidgetProvider" android:label="@string/widget_label_extensive">
+        <receiver android:exported="true" android:name=".widgets.ExtensiveWidgetProvider" android:label="@string/widget_label_extensive">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
@@ -64,7 +65,7 @@
                 android:resource="@xml/extensive_widget" />
         </receiver>
 
-        <receiver android:name=".widgets.TimeWidgetProvider" android:label="@string/widget_label_time">
+        <receiver android:exported="true" android:name=".widgets.TimeWidgetProvider" android:label="@string/widget_label_time">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
@@ -74,7 +75,7 @@
                 android:resource="@xml/time_widget" />
         </receiver>
 
-        <receiver android:name=".widgets.SimpleWidgetProvider" android:label="@string/widget_label_simple">
+        <receiver android:exported="true" android:name=".widgets.SimpleWidgetProvider" android:label="@string/widget_label_simple">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
@@ -84,7 +85,7 @@
                 android:resource="@xml/simple_widget" />
         </receiver>
 
-        <receiver android:name=".widgets.ClassicTimeWidgetProvider" android:label="@string/widget_label_classic">
+        <receiver android:exported="true" android:name=".widgets.ClassicTimeWidgetProvider" android:label="@string/widget_label_classic">
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
             </intent-filter>
@@ -94,7 +95,7 @@
                 android:resource="@xml/time_widget_classic" />
         </receiver>
 
-        <receiver android:name=".AlarmReceiver">
+        <receiver android:exported="true" android:name=".AlarmReceiver">
             <intent-filter>
                 <action android:name="android.intent.action.BOOT_COMPLETED" />
                 <action android:name="android.intent.action.PACKAGE_REPLACED" />
diff --git a/app/src/main/java/cz/martykan/forecastie/AlarmReceiver.java b/app/src/main/java/cz/martykan/forecastie/AlarmReceiver.java
index 36917368..90d468d5 100644
--- a/app/src/main/java/cz/martykan/forecastie/AlarmReceiver.java
+++ b/app/src/main/java/cz/martykan/forecastie/AlarmReceiver.java
@@ -374,8 +374,9 @@ public static void setRecurringAlarm(Context context) {
         String intervalPref = PreferenceManager.getDefaultSharedPreferences(context)
                 .getString("refreshInterval", "1");
         Intent refresh = new Intent(context, AlarmReceiver.class);
-        PendingIntent recurringRefresh = PendingIntent.getBroadcast(context,
-                0, refresh, PendingIntent.FLAG_CANCEL_CURRENT);
+        PendingIntent recurringRefresh = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+            ? PendingIntent.getBroadcast(context, 0, refresh, PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+            : PendingIntent.getBroadcast(context, 0, refresh, PendingIntent.FLAG_CANCEL_CURRENT);
         AlarmManager alarms = (AlarmManager) context.getSystemService(
                 Context.ALARM_SERVICE);
         long intervalMillis = intervalMillisForRecurringAlarm(intervalPref);
diff --git a/app/src/main/java/cz/martykan/forecastie/widgets/AbstractWidgetProvider.java b/app/src/main/java/cz/martykan/forecastie/widgets/AbstractWidgetProvider.java
index f8cd0d13..80f6a41d 100644
--- a/app/src/main/java/cz/martykan/forecastie/widgets/AbstractWidgetProvider.java
+++ b/app/src/main/java/cz/martykan/forecastie/widgets/AbstractWidgetProvider.java
@@ -148,7 +148,9 @@ protected void cancelUpdate(Context context) {
     protected PendingIntent getTimeIntent(Context context) {
         Intent intent = new Intent(context, this.getClass());
         intent.setAction(ACTION_UPDATE_TIME);
-        return PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
+        return android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+            ? PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+            : PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
     }
 
     protected String getFormattedTemperature(Weather weather, Context context, SharedPreferences sp) {
diff --git a/app/src/main/java/cz/martykan/forecastie/widgets/ClassicTimeWidgetProvider.java b/app/src/main/java/cz/martykan/forecastie/widgets/ClassicTimeWidgetProvider.java
index 431df5f8..df53881e 100644
--- a/app/src/main/java/cz/martykan/forecastie/widgets/ClassicTimeWidgetProvider.java
+++ b/app/src/main/java/cz/martykan/forecastie/widgets/ClassicTimeWidgetProvider.java
@@ -35,8 +35,10 @@ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] a
             setTheme(context, remoteViews);
 
             Intent intent = new Intent(context, AlarmReceiver.class);
-            PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
-                    0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+            PendingIntent pendingIntent = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+                ? PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+                : PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+
             remoteViews.setOnClickPendingIntent(R.id.widgetButtonRefresh, pendingIntent);
 
             SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
diff --git a/app/src/main/java/cz/martykan/forecastie/widgets/ExtensiveWidgetProvider.java b/app/src/main/java/cz/martykan/forecastie/widgets/ExtensiveWidgetProvider.java
index 0cfb301d..bfc6dd0e 100644
--- a/app/src/main/java/cz/martykan/forecastie/widgets/ExtensiveWidgetProvider.java
+++ b/app/src/main/java/cz/martykan/forecastie/widgets/ExtensiveWidgetProvider.java
@@ -26,8 +26,9 @@ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] a
             setTheme(context, remoteViews);
 
             Intent intent = new Intent(context, AlarmReceiver.class);
-            PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
-                    0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+            PendingIntent pendingIntent = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+                    ? PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+                    : PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
             remoteViews.setOnClickPendingIntent(R.id.widgetButtonRefresh, pendingIntent);
 
             SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
diff --git a/app/src/main/java/cz/martykan/forecastie/widgets/SimpleWidgetProvider.java b/app/src/main/java/cz/martykan/forecastie/widgets/SimpleWidgetProvider.java
index 3b7cf9f5..81b4f2b9 100644
--- a/app/src/main/java/cz/martykan/forecastie/widgets/SimpleWidgetProvider.java
+++ b/app/src/main/java/cz/martykan/forecastie/widgets/SimpleWidgetProvider.java
@@ -22,8 +22,9 @@ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] a
             setTheme(context, remoteViews);
 
             Intent intent = new Intent(context, AlarmReceiver.class);
-            PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
-                    0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+            PendingIntent pendingIntent = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+                    ? PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+                    : PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
             remoteViews.setOnClickPendingIntent(R.id.widgetButtonRefresh, pendingIntent);
 
             SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
diff --git a/app/src/main/java/cz/martykan/forecastie/widgets/TimeWidgetProvider.java b/app/src/main/java/cz/martykan/forecastie/widgets/TimeWidgetProvider.java
index 31ddd813..295dcf8b 100644
--- a/app/src/main/java/cz/martykan/forecastie/widgets/TimeWidgetProvider.java
+++ b/app/src/main/java/cz/martykan/forecastie/widgets/TimeWidgetProvider.java
@@ -27,8 +27,9 @@ public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] a
             setTheme(context, remoteViews);
 
             Intent intent = new Intent(context, AlarmReceiver.class);
-            PendingIntent pendingIntent = PendingIntent.getBroadcast(context,
-                    0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
+            PendingIntent pendingIntent = android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M
+                    ? PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT | PendingIntent.FLAG_IMMUTABLE)
+                    : PendingIntent.getBroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
             remoteViews.setOnClickPendingIntent(R.id.widgetButtonRefresh, pendingIntent);
 
             SharedPreferences sp = PreferenceManager.getDefaultSharedPreferences(context);
diff --git a/build.gradle b/build.gradle
index 22161cb1..10d315ba 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,17 +1,17 @@
 buildscript {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.1'
+        classpath 'com.android.tools.build:gradle:7.1.2'
     }
 }
 
 allprojects {
     repositories {
         google()
-        jcenter()
+        mavenCentral()
     }
     gradle.projectsEvaluated {
         tasks.withType(JavaCompile) {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 7b868e0f..ffd72b7b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-all.zip