diff --git a/app/build.gradle b/app/build.gradle
index c5f19a3c..d01f0a77 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -59,8 +59,8 @@ android {
 }
 
 dependencies {
-    compile fileTree(include: ['*.jar'], dir: 'libs')
-    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
+    implementation fileTree(include: ['*.jar'], dir: 'libs')
+    androidTestImplementation('com.android.support.test.espresso:espresso-core:2.2.2', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
 
@@ -69,59 +69,59 @@ dependencies {
     implementation project(':emoji')
     implementation project(':apng_android')
 
-    compile 'com.android.support:support-v4:27.1.0'
-    compile 'com.android.support:appcompat-v7:27.1.0'
-    compile 'com.android.support:design:27.1.0'
-    compile 'com.android.support:customtabs:27.1.0'
-    compile 'com.android.support:support-v13:27.1.0'
+    implementation 'com.android.support:support-v4:27.1.0'
+    implementation 'com.android.support:appcompat-v7:27.1.0'
+    implementation 'com.android.support:design:27.1.0'
+    implementation 'com.android.support:customtabs:27.1.0'
+    implementation 'com.android.support:support-v13:27.1.0'
 
-    compile 'com.google.firebase:firebase-core:11.8.0'
-    compile 'com.google.firebase:firebase-messaging:11.8.0'
+    implementation 'com.google.firebase:firebase-core:12.0.0'
+    implementation 'com.google.firebase:firebase-messaging:12.0.0'
 
-    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
-    compile "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
-    testCompile "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
-    testCompile 'junit:junit:4.12' // しばらくはjunitと併用
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
+    testImplementation "org.jetbrains.kotlin:kotlin-test:$kotlin_version"
+    testImplementation 'junit:junit:4.12' // しばらくはjunitと併用
 
     // compile 'org.jetbrains.kotlinx:kotlinx-coroutines-core:0.21.2'
 
-    compile 'uk.co.chrisjenx:calligraphy:2.3.0'
-    compile 'com.github.woxthebox:draglistview:1.5.1'
-    compile 'com.github.omadahealth:swipy:1.2.3@aar'
+    implementation 'uk.co.chrisjenx:calligraphy:2.3.0'
+    implementation 'com.github.woxthebox:draglistview:1.5.1'
+    implementation 'com.github.omadahealth:swipy:1.2.3@aar'
     // compile 'com.jrummyapps:colorpicker:2.1.7'
-    compile 'com.github.kenglxn.QRGen:android:2.3.0'
+    implementation 'com.github.kenglxn.QRGen:android:2.3.0'
 
-    compile 'com.squareup.okhttp3:okhttp:3.9.1'
+    implementation 'com.squareup.okhttp3:okhttp:3.9.1'
     testImplementation 'com.squareup.okhttp3:mockwebserver:3.9.1'
-    androidTestCompile 'com.squareup.okhttp3:mockwebserver:3.9.1'
+    androidTestImplementation 'com.squareup.okhttp3:mockwebserver:3.9.1'
 
-    compile 'commons-io:commons-io:2.6'
+    implementation 'commons-io:commons-io:2.6'
 
-    compile 'com.github.bumptech.glide:glide:4.5.0'
-    compile 'com.github.bumptech.glide:okhttp3-integration:4.5.0'
-    compile 'com.github.bumptech.glide:annotations:4.5.0'
+    implementation 'com.github.bumptech.glide:glide:4.5.0'
+    implementation 'com.github.bumptech.glide:okhttp3-integration:4.5.0'
+    implementation 'com.github.bumptech.glide:annotations:4.5.0'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.5.0'
 
-    compile 'org.hjson:hjson:3.0.0'
+    implementation 'org.hjson:hjson:3.0.0'
 
-    compile 'com.google.android:flexbox:0.3.1'
+    implementation 'com.google.android:flexbox:0.3.1'
 
-    compile 'com.astuetz:pagerslidingtabstrip:1.0.1'
+    implementation 'com.astuetz:pagerslidingtabstrip:1.0.1'
 
 
     implementation 'com.google.android.exoplayer:exoplayer:r2.5.4'
 
-    compile "org.jetbrains.anko:anko:$anko_version"
+    implementation "org.jetbrains.anko:anko:$anko_version"
     // Anko Layouts
-    compile "org.jetbrains.anko:anko-sdk25:$anko_version" // sdk15, sdk19, sdk21, sdk23 are also available
-    compile "org.jetbrains.anko:anko-appcompat-v7:$anko_version"
+    implementation "org.jetbrains.anko:anko-sdk25:$anko_version" // sdk15, sdk19, sdk21, sdk23 are also available
+    implementation "org.jetbrains.anko:anko-appcompat-v7:$anko_version"
 
     // Coroutine listeners for Anko Layouts
-    //compile "org.jetbrains.anko:anko-sdk25-coroutines:$anko_version"
-    //compile "org.jetbrains.anko:anko-appcompat-v7-coroutines:$anko_version"
+    //implementation "org.jetbrains.anko:anko-sdk25-coroutines:$anko_version"
+    //implementation "org.jetbrains.anko:anko-appcompat-v7-coroutines:$anko_version"
 
 
-    // compile 'com.simplecityapps:recyclerview-fastscroll:1.0.16'
+    // implementation 'com.simplecityapps:recyclerview-fastscroll:1.0.16'
 
     implementation 'me.drakeet.support:toastcompat:1.0.2'
 }
diff --git a/build.gradle b/build.gradle
index 8d48c357..2d449378 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,6 +1,6 @@
 buildscript {
 
-    ext.kotlin_version = '1.2.30'
+    ext.kotlin_version = '1.2.31'
     ext.kotlin_coroutines_version = '0.21.2'
     ext.anko_version='0.10.4'
 
@@ -10,7 +10,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.0'
         classpath 'com.google.gms:google-services:3.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
diff --git a/colorpicker/build.gradle b/colorpicker/build.gradle
index ac8b2ebe..2d919773 100644
--- a/colorpicker/build.gradle
+++ b/colorpicker/build.gradle
@@ -16,7 +16,7 @@ android {
 }
 
 dependencies {
-  compile 'com.android.support:appcompat-v7:27.1.0'
+  implementation 'com.android.support:appcompat-v7:27.1.0'
 }
 
 //apply plugin: 'com.getkeepsafe.dexcount'
diff --git a/exif/build.gradle b/exif/build.gradle
index e6157cca..77309ea0 100644
--- a/exif/build.gradle
+++ b/exif/build.gradle
@@ -20,6 +20,6 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'commons-io:commons-io:2.6'
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'commons-io:commons-io:2.6'
 }
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 862f49c7..782f572c 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Thu Jan 18 01:59:02 JST 2018
+#Tue Mar 27 11:23:31 JST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.3-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip