diff --git a/app/build.gradle b/app/build.gradle
index 53f2f0b7..c9387a8f 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -16,8 +16,8 @@ android {
         applicationId 'com.stevenschoen.putionew'
         minSdkVersion 21
         targetSdkVersion 27
-        versionCode 128
-        versionName '4.2.1'
+        versionCode 129
+        versionName '4.3.0'
         multiDexEnabled true
 
         kapt {
@@ -65,13 +65,14 @@ dependencies {
     implementation "com.android.support:cardview-v7:$supportLibVersion"
     implementation "com.android.support:mediarouter-v7:$supportLibVersion"
     implementation 'com.android.support.constraint:constraint-layout:1.1.0'
-    implementation 'com.google.firebase:firebase-core:11.8.0'
-    implementation 'com.google.android.gms:play-services-cast-framework:11.8.0'
-    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.2'
+    def playServicesVersion = "11.8.0"
+    implementation "com.google.firebase:firebase-core:$playServicesVersion"
+    implementation "com.google.android.gms:play-services-cast-framework:$playServicesVersion"
+    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.3'
     implementation 'com.jakewharton.timber:timber:4.7.0'
     implementation 'commons-io:commons-io:2.6'
     implementation 'net.danlew:android.joda:2.9.9.4'
-    implementation 'io.reactivex.rxjava2:rxjava:2.1.10'
+    implementation 'io.reactivex.rxjava2:rxjava:2.1.14'
     def rxLifecycleVersion = "2.2.1"
     implementation "com.trello.rxlifecycle2:rxlifecycle:$rxLifecycleVersion"
     implementation "com.trello.rxlifecycle2:rxlifecycle-components:$rxLifecycleVersion"
@@ -90,7 +91,7 @@ dependencies {
     implementation "com.squareup.retrofit2:retrofit:$retrofitVersion"
     implementation "com.squareup.retrofit2:adapter-rxjava2:$retrofitVersion"
     implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"
-    implementation 'com.google.code.gson:gson:2.8.2'
+    implementation 'com.google.code.gson:gson:2.8.5'
     implementation 'com.tbruyelle.rxpermissions2:rxpermissions:0.9.4@aar'
     implementation 'com.squareup.picasso:picasso:2.71828'
     implementation 'com.aurelhubert:ahbottomnavigation:2.2.0'
@@ -98,7 +99,7 @@ dependencies {
     implementation "nz.bradcampbell:paperparcel:$paperParcelVersion"
     implementation "nz.bradcampbell:paperparcel-kotlin:$paperParcelVersion"
     kapt "nz.bradcampbell:paperparcel-compiler:$paperParcelVersion"
-    implementation 'com.google.android.exoplayer:exoplayer:2.8.0'
+    implementation 'com.google.android.exoplayer:exoplayer:2.8.1'
     def roomVersion = "1.1.0"
     implementation "android.arch.persistence.room:runtime:$roomVersion"
     kapt "android.arch.persistence.room:compiler:$roomVersion"
diff --git a/app/src/main/java/com/stevenschoen/putionew/files/FileSelectionFragment.kt b/app/src/main/java/com/stevenschoen/putionew/files/FileSelectionFragment.kt
index c287a5a8..582dfbb2 100644
--- a/app/src/main/java/com/stevenschoen/putionew/files/FileSelectionFragment.kt
+++ b/app/src/main/java/com/stevenschoen/putionew/files/FileSelectionFragment.kt
@@ -129,6 +129,6 @@ class FileSelectionFragment : RxFragment() {
 
   override fun onSaveInstanceState(outState: Bundle) {
     super.onSaveInstanceState(outState)
-    outState.putInt(STATE_AMOUNT_SELECTED, amountSelected.value)
+    outState.putInt(STATE_AMOUNT_SELECTED, amountSelected.value!!)
   }
 }
diff --git a/app/src/main/java/com/stevenschoen/putionew/transfers/add/DestinationPickerFragment.kt b/app/src/main/java/com/stevenschoen/putionew/transfers/add/DestinationPickerFragment.kt
index debac115..e892cafa 100644
--- a/app/src/main/java/com/stevenschoen/putionew/transfers/add/DestinationPickerFragment.kt
+++ b/app/src/main/java/com/stevenschoen/putionew/transfers/add/DestinationPickerFragment.kt
@@ -20,7 +20,7 @@ class DestinationPickerFragment : RxFragment() {
   private lateinit var destinationSubject: BehaviorSubject<PutioFile>
 
   val destination: PutioFile
-    get() = destinationSubject.value
+    get() = destinationSubject.value!!
 
   override fun onCreate(savedInstanceState: Bundle?) {
     super.onCreate(savedInstanceState)
diff --git a/app/src/main/java/com/stevenschoen/putionew/tv/TvActivity.kt b/app/src/main/java/com/stevenschoen/putionew/tv/TvActivity.kt
index 2c411088..3e5f7a6a 100644
--- a/app/src/main/java/com/stevenschoen/putionew/tv/TvActivity.kt
+++ b/app/src/main/java/com/stevenschoen/putionew/tv/TvActivity.kt
@@ -74,7 +74,7 @@ class TvActivity : FragmentActivity() {
     super.onAttachFragment(fragment)
     if (fragment is TvFolderFragment) {
       fragment.onFolderSelected = { folder ->
-        folders.onNext(folders.value.plus(folder))
+        folders.onNext(folders.value!! + folder)
       }
     }
   }
@@ -85,7 +85,7 @@ class TvActivity : FragmentActivity() {
     if (displayedFolders.size > 1) {
       val lastFolderFragment = supportFragmentManager.findFragmentByTag(makeFolderFragTag(displayedFolders.last()))
       if (lastFolderFragment != null && lastFolderFragment is TvFolderFragment) {
-        folders.onNext(folders.value.dropLast(1))
+        folders.onNext(folders.value!!.dropLast(1))
       }
     } else {
       super.onBackPressed()