diff --git a/app/build.gradle b/app/build.gradle
index b501c9896..9121b3ffd 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,7 +4,7 @@ apply plugin: 'kotlin-android-extensions'
 
 android {
     compileSdkVersion 27
-    buildToolsVersion "27.0.1"
+    buildToolsVersion "27.0.2"
 
     defaultConfig {
         applicationId "com.simplemobiletools.calendar"
@@ -43,7 +43,7 @@ ext {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:3.2.3'
+    implementation 'com.simplemobiletools:commons:3.3.12'
     implementation 'joda-time:joda-time:2.9.9'
     implementation 'com.facebook.stetho:stetho:1.5.0'
     implementation 'com.android.support:multidex:1.0.2'