diff --git a/app/build.gradle b/app/build.gradle
index 476e545bc..be8813009 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -3,7 +3,7 @@ apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'kotlin-kapt'
 apply plugin: 'de.timfreiheit.resourceplaceholders'
-apply plugin: 'io.fabric'
+apply plugin: 'com.google.firebase.crashlytics'
 
 androidExtensions {
     experimental = true
@@ -128,7 +128,7 @@ dependencies {
     implementation 'androidx.core:core-ktx:1.3.2'
     implementation 'androidx.appcompat:appcompat:1.2.0'
     implementation 'androidx.media:media:1.2.0'
-    implementation 'androidx.preference:preference:1.1.1'
+    implementation 'androidx.preference:preference-ktx:1.1.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
     implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0'
     implementation 'androidx.viewpager2:viewpager2:1.0.0'
diff --git a/build.gradle b/build.gradle
index 92c6e5f3e..cad3c6349 100644
--- a/build.gradle
+++ b/build.gradle
@@ -8,15 +8,14 @@ buildscript {
         maven { url 'https://maven.aliyun.com/nexus/content/groups/public/' }
         maven { url 'https://s3.amazonaws.com/fabric-artifacts/public' }
         maven { url 'https://maven.aliyun.com/repository/gradle-plugin' }
-        maven { url 'https://maven.fabric.io/public' }
         maven { url 'https://plugins.gradle.org/m2/' }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:4.0.2'
+        classpath 'com.android.tools.build:gradle:4.1.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'de.timfreiheit.resourceplaceholders:placeholders:0.3'
         classpath 'com.google.gms:google-services:4.3.4'
-        classpath 'io.fabric.tools:gradle:1.31.2'
+        classpath 'com.google.firebase:firebase-crashlytics-gradle:2.3.0'
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c1e56316f..806be7b26 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sat May 30 10:00:31 CST 2020
+#Tue Oct 13 11:35:54 CST 2020
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.5-all.zip