Update dependencies

build.gradle

@@ -4,7 +4,7 @@ apply plugin: 'com.github.ben-manes.versions'
 
 buildscript {
     ext {
-        kotlinVersion = '1.2.31'
+        kotlinVersion = '1.2.40'
         minSdkVersion = 21
         sdkVersion = 27
         buildToolsVersion = '27.0.3'
@@ -12,8 +12,8 @@ buildscript {
         takisoftFixVersion = '27.1.1.0'
         playServicesVersion = '12.0.1'
         junitVersion = '4.12'
-        androidTestVersion = '1.0.1'
-        androidEspressoVersion = '3.0.1'
+        androidTestVersion = '1.0.2'
+        androidEspressoVersion = '3.0.2'
     }
 
     repositories {
@@ -22,7 +22,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.1.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
         classpath 'com.github.ben-manes:gradle-versions-plugin:0.17.0'
         classpath 'com.google.gms:google-services:3.2.1'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"

plugin/build.gradle

@@ -26,7 +26,7 @@ android {
 dependencies {
     api "com.android.support:preference-v14:$supportLibraryVersion"
     api "com.takisoft.fix:preference-v7:$takisoftFixVersion"
-    api "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlinVersion"
+    api "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlinVersion"
     testImplementation "junit:junit:$junitVersion"
     androidTestImplementation "com.android.support.test:runner:$androidTestVersion"
     androidTestImplementation "com.android.support.test.espresso:espresso-core:$androidEspressoVersion"