diff --git a/.travis.yml b/.travis.yml
index 697e5c900..3762b19df 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,7 @@ android:
   components:
     - platform-tools
     - tools
-    - build-tools-27.0.3
+    - build-tools-28.0.3
     - extra-google-google_play_services
   licenses:
     - '.+'
@@ -13,4 +13,4 @@ script:
     - ./gradlew assembleConversationsFreeSystemRelease
 
 before_install:
-    - yes | sdkmanager "platforms;android-27"
+    - yes | sdkmanager "platforms;android-28"
diff --git a/build.gradle b/build.gradle
index f5b42e5fc..c4617f224 100644
--- a/build.gradle
+++ b/build.gradle
@@ -51,19 +51,19 @@ dependencies {
     conversationsFreeCompatImplementation "com.android.support:support-emoji-bundled:$supportLibVersion"
     quicksyFreeCompatImplementation "com.android.support:support-emoji-bundled:$supportLibVersion"
     implementation 'org.bouncycastle:bcmail-jdk15on:1.58'
-    implementation 'com.google.zxing:core:3.3.0'
+    implementation 'com.google.zxing:core:3.3.3'
     implementation 'de.measite.minidns:minidns-hla:0.2.4'
     implementation 'me.leolin:ShortcutBadger:1.1.22@aar'
     implementation 'org.whispersystems:signal-protocol-java:2.6.2'
     implementation 'com.makeramen:roundedimageview:2.3.0'
     implementation "com.wefika:flowlayout:0.4.1"
-    implementation 'net.ypresto.androidtranscoder:android-transcoder:0.2.0'
+    implementation 'net.ypresto.androidtranscoder:android-transcoder:0.3.0'
     implementation project(':libs:xmpp-addr')
-    implementation 'org.osmdroid:osmdroid-android:6.0.1'
+    implementation 'org.osmdroid:osmdroid-android:6.0.3'
     implementation 'org.hsluv:hsluv:0.2'
     implementation 'org.conscrypt:conscrypt-android:1.3.0'
     implementation 'me.drakeet.support:toastcompat:1.1.0'
-    quicksyImplementation 'io.michaelrocks:libphonenumber-android:8.9.14'
+    quicksyImplementation 'io.michaelrocks:libphonenumber-android:8.10.1'
 }
 
 ext {
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index ef9b31b2e..0682df5e2 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,4 +2,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.3-all.zip