diff --git a/app/build.gradle b/app/build.gradle
index d3367d4..67d5639 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ android {
 
     defaultConfig {
         applicationId "com.simplemobiletools.flashlight"
-        minSdkVersion 16
+        minSdkVersion 21
         targetSdkVersion 28
         versionCode 31
         versionName "4.2.0"
@@ -41,7 +41,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:4.9.1'
+    implementation 'com.simplemobiletools:commons:5.0.14'
     implementation 'com.squareup:otto:1.3.8'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
 }
diff --git a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
index e07198c..da6de8d 100644
--- a/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
+++ b/app/src/main/kotlin/com/simplemobiletools/flashlight/helpers/MarshmallowCamera.kt
@@ -8,7 +8,6 @@ import android.os.Handler
 import com.simplemobiletools.flashlight.models.Events
 import com.squareup.otto.Bus
 
-@TargetApi(Build.VERSION_CODES.LOLLIPOP)
 internal class MarshmallowCamera constructor(val context: Context) {
 
     private val manager = context.getSystemService(Context.CAMERA_SERVICE) as CameraManager
diff --git a/build.gradle b/build.gradle
index 452dc35..0b0dbc0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -4,12 +4,12 @@ buildscript {
     ext.kotlin_version = '1.2.71'
 
     repositories {
-        jcenter()
         google()
+        jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.0'
+        classpath 'com.android.tools.build:gradle:3.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
@@ -19,8 +19,8 @@ buildscript {
 
 allprojects {
     repositories {
-        jcenter()
         google()
+        jcenter()
         maven { url "https://jitpack.io" }
     }
 }