diff --git a/android/app/build.gradle b/android/app/build.gradle
index cf9133d..8448806 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -32,7 +32,7 @@ def keystoreProperties = new Properties()
        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
    }
 android {
-    compileSdkVersion 29
+    compileSdkVersion 31
 
     sourceSets {
         main.java.srcDirs += 'src/main/kotlin'
diff --git a/android/app/src/main/ic_launcher-playstore.png b/android/app/src/main/ic_launcher-playstore.png
index ba55b3c..09dae23 100644
Binary files a/android/app/src/main/ic_launcher-playstore.png and b/android/app/src/main/ic_launcher-playstore.png differ
diff --git a/android/app/src/main/res/drawable/ic_launcher_foreground.png b/android/app/src/main/res/drawable/ic_launcher_foreground.png
deleted file mode 100644
index 22c0007..0000000
Binary files a/android/app/src/main/res/drawable/ic_launcher_foreground.png and /dev/null differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
index 7ede9ec..6bd36b5 100644
Binary files a/android/app/src/main/res/mipmap-hdpi/ic_launcher.png and b/android/app/src/main/res/mipmap-hdpi/ic_launcher.png differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_background.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_background.png
index 43b3032..cce0ead 100644
Binary files a/android/app/src/main/res/mipmap-hdpi/ic_launcher_background.png and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_background.png differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png
index 182c941..092e532 100644
Binary files a/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png
index 3d5f3cd..23ee898 100644
Binary files a/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png and b/android/app/src/main/res/mipmap-hdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
index 88bf610..2967aaf 100644
Binary files a/android/app/src/main/res/mipmap-mdpi/ic_launcher.png and b/android/app/src/main/res/mipmap-mdpi/ic_launcher.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_background.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_background.png
index 880a31d..39bda3c 100644
Binary files a/android/app/src/main/res/mipmap-mdpi/ic_launcher_background.png and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_background.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png
index 97073c1..9b0bac1 100644
Binary files a/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png
index 4bf0c90..81d5580 100644
Binary files a/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png and b/android/app/src/main/res/mipmap-mdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
index 4d0f948..a7abf66 100644
Binary files a/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_background.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_background.png
index be4029d..89a0fb5 100644
Binary files a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_background.png and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_background.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png
index 74caf35..a31033b 100644
Binary files a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png
index 32d01e2..24816f7 100644
Binary files a/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png and b/android/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
index 5374d0f..2a714e7 100644
Binary files a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png and b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_background.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_background.png
index 178319a..4a72d13 100644
Binary files a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_background.png and b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_background.png differ
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_foreground.png
index a421e7d..303740e 100644
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diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png
index 83ca0c9..da8550c 100644
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diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
index 11b1a96..7bb6a7c 100644
Binary files a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_background.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_background.png
index 1cbc485..37c1b75 100644
Binary files a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_background.png and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_background.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png
index 22c0007..e03218b 100644
Binary files a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_foreground.png differ
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png
index 92b9d9f..835011c 100644
Binary files a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png and b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png differ
diff --git a/android/build.gradle b/android/build.gradle
index e62a641..6e73943 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -1,12 +1,12 @@
 buildscript {
-    ext.kotlin_version = '1.3.50'
+    ext.kotlin_version = '1.5.10'
     repositories {
         google()
         jcenter()
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.5.0'
+        classpath 'com.android.tools.build:gradle:4.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.google.gms:google-services:4.3.5'
     }
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
index 296b146..3df6b33 100644
--- a/android/gradle/wrapper/gradle-wrapper.properties
+++ b/android/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-5.6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.9-all.zip