diff --git a/app/build.gradle b/app/build.gradle
index 3cffccaa..73126994 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,12 +4,12 @@ apply plugin: 'kotlin-android-extensions'
 apply plugin: 'eclipse'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion '25.0.3'
+    compileSdkVersion 27
+    buildToolsVersion '26.0.2'
     defaultConfig {
         applicationId "com.zeapo.pwdstore"
         minSdkVersion 16
-        targetSdkVersion 25
+        targetSdkVersion 27
         versionCode 89
         versionName "1.2.0.69"
 
@@ -56,11 +56,11 @@ android {
 }
 
 dependencies {
-    compile 'com.android.support:appcompat-v7:25.4.0'
-    compile 'com.android.support:recyclerview-v7:25.4.0'
-    compile 'com.android.support:cardview-v7:25.4.0'
-    compile 'com.android.support:design:25.4.0'
-    compile 'com.android.support:support-annotations:25.4.0'
+    compile 'com.android.support:appcompat-v7:27.0.0'
+    compile 'com.android.support:recyclerview-v7:27.0.0'
+    compile 'com.android.support:cardview-v7:27.0.0'
+    compile 'com.android.support:design:27.0.0'
+    compile 'com.android.support:support-annotations:27.0.0'
     compile 'org.sufficientlysecure:openpgp-api:11.0'
     compile 'com.nononsenseapps:filepicker:2.4.2'
     compile('org.eclipse.jgit:org.eclipse.jgit:3.7.1.201504261725-r') {
@@ -75,10 +75,10 @@ dependencies {
     // Testing-only dependencies
     androidTestCompile 'junit:junit:4.12'
     androidTestCompile 'org.mockito:mockito-core:2.8.47'
-    androidTestCompile 'com.android.support.test:runner:1.0.0'
-    androidTestCompile 'com.android.support.test:rules:1.0.0'
-    androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.0'
-    androidTestCompile 'com.android.support.test.espresso:espresso-intents:3.0.0'
+    androidTestCompile 'com.android.support.test:runner:1.0.1'
+    androidTestCompile 'com.android.support.test:rules:1.0.1'
+    androidTestCompile 'com.android.support.test.espresso:espresso-core:3.0.1'
+    androidTestCompile 'com.android.support.test.espresso:espresso-intents:3.0.1'
 
 
 }
diff --git a/build.gradle b/build.gradle
index 740e4729..73a73c9f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,7 +7,7 @@ buildscript {
         mavenCentral()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.3'
+        classpath 'com.android.tools.build:gradle:3.0.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
 
         // NOTE: Do not place your application dependencies here; they belong
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 3c0661ab..8ff1857b 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Sun Apr 16 22:11:56 CEST 2017
+#Mon Oct 30 22:06:22 CET 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip