diff --git a/app/build.gradle b/app/build.gradle
index 6d2f8dba..8f3cf131 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -51,7 +51,7 @@ android {
 }
 
 dependencies {
-    implementation 'com.simplemobiletools:commons:5.6.5'
+    implementation 'com.simplemobiletools:commons:5.6.12'
     implementation 'joda-time:joda-time:2.10.1'
     implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'
     implementation 'com.googlecode.ez-vcard:ez-vcard:0.10.5'
diff --git a/app/src/main/res/values-el/strings.xml b/app/src/main/res/values-el/strings.xml
index f27d60a9..bca344c6 100644
--- a/app/src/main/res/values-el/strings.xml
+++ b/app/src/main/res/values-el/strings.xml
@@ -18,7 +18,7 @@
     <string name="create_new_contact">Δημιουργία νέας Επαφής</string>
     <string name="add_to_existing_contact">Προσθήκη σε μια υπάρχουσα Επαφή</string>
     <string name="must_make_default_dialer">Θα πρέπει να οριστεί προεπιλεγμένη εφαρμογή για χρησιμοποίηση αποκλεισμένων αριθμών.</string>
-    <string name="set_to_default">Ορισμός προεπιλεγμένης/string>
+    <string name="set_to_default">Ορισμός προεπιλεγμένης</string>
 
     <!-- Placeholders -->
     <string name="no_contacts_found">Δεν βρέθηκαν Επαφές</string>
diff --git a/build.gradle b/build.gradle
index 266ccd46..6fa14f56 100644
--- a/build.gradle
+++ b/build.gradle
@@ -9,7 +9,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.2.1'
+        classpath 'com.android.tools.build:gradle:3.3.0'
         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 503fd67b..6b3149fe 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
-#Tue Sep 25 13:09:34 CEST 2018
+#Tue Jan 22 21:30:53 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip