diff --git a/app/build.gradle b/app/build.gradle
index c6a5677..d45ce5c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -34,6 +34,11 @@ android {
         exclude 'lib/x86_64/freebsd/libscrypt.so'
         exclude 'lib/x86_64/linux/libscrypt.so'
     }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {
@@ -47,7 +52,7 @@ dependencies {
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
     // AndroidX
     implementation 'androidx.appcompat:appcompat:1.0.2'
-    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha3'
     // Google
     implementation 'com.google.zxing:core:3.3.1'
     implementation 'com.google.code.gson:gson:2.8.5'
@@ -73,7 +78,7 @@ dependencies {
     //Firebase
     implementation 'com.google.firebase:firebase-core:16.0.6'
     implementation 'com.google.firebase:firebase-crash:16.2.1'
-    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.7'
+    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.8'
     // Others
     implementation 'org.bitcoinj:bitcoinj-core:0.14.3'
     implementation 'com.moldedbits.r2d2:r2d2:1.0.1'
diff --git a/app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt b/app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt
index 80db5b1..caf1374 100644
--- a/app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt
+++ b/app/src/main/java/cy/agorise/bitsybitshareswallet/fragments/SendTransactionFragment.kt
@@ -122,7 +122,7 @@ class SendTransactionFragment : Fragment(), ZXingScannerView.ResultHandler, Serv
             mUserAccount = UserAccount(userId)
 
         // Use Navigation SafeArgs to decide if we should activate or not the camera feed
-        val safeArgs = SendTransactionFragmentArgs.fromBundle(arguments)
+        val safeArgs = SendTransactionFragmentArgs.fromBundle(arguments!!)
         if (safeArgs.openCamera)
             verifyCameraPermission()
 
diff --git a/build.gradle b/build.gradle
index 41016e7..74d9ad6 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,7 +1,7 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-    ext.kotlin_version = '1.3.0'
+    ext.kotlin_version = '1.3.11'
     repositories {
         google()
         jcenter()
@@ -11,9 +11,9 @@ buildscript {
 
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.3.0-rc02'
+        classpath 'com.android.tools.build:gradle:3.3.0-rc03'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha08"
+        classpath "android.arch.navigation:navigation-safe-args-gradle-plugin:1.0.0-alpha09"
         classpath 'com.google.gms:google-services:4.2.0'
         classpath 'io.fabric.tools:gradle:1.27.0'