Gradle plugins and Kotlin were updated to the latest version.

build.gradle

@@ -6,9 +6,9 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:4.0.1"
+        classpath "com.android.tools.build:gradle:4.1.1"
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
-        classpath "com.google.gms:google-services:4.3.3"
+        classpath "com.google.gms:google-services:4.3.4"
         classpath files('libs/gradle-witness.jar')
     }
 }

gradle.properties

@@ -2,7 +2,7 @@ android.useAndroidX=true
 android.enableJetifier=true
 org.gradle.jvmargs=-Xmx2048m
 
-kotlinVersion=1.4.0
+kotlinVersion=1.4.20
 kovenantVersion=3.3.0
 curve25519Version=0.5.0
 protobufVersion=2.5.0