diff --git a/app/app.iml b/app/app.iml
index 30951be..7c83531 100644
--- a/app/app.iml
+++ b/app/app.iml
@@ -94,14 +94,19 @@
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-classes" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-runtime-classes" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/incremental-verifier" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-apk" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-main-apk-res" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-resources" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/instant-run-support" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/javaPrecompile" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/jniLibs" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/lint" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/manifest-checker" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/manifests" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/prebuild" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/reload-dex" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/res" />
+      <excludeFolder url="file://$MODULE_DIR$/build/intermediates/resources" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/rs" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/shaders" />
       <excludeFolder url="file://$MODULE_DIR$/build/intermediates/split-apk" />
@@ -114,27 +119,27 @@
     </content>
     <orderEntry type="jdk" jdkName="Android API 27 Platform" jdkType="Android SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" name="com.android.support:animated-vector-drawable-27.1.0" level="project" />
-    <orderEntry type="library" name="android.arch.lifecycle:common:1.1.0@jar" level="project" />
-    <orderEntry type="library" name="com.android.support:appcompat-v7-27.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:design-27.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-compat-27.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:transition-27.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-core-utils-27.1.0" level="project" />
-    <orderEntry type="library" name="android.arch.core:common:1.1.0@jar" level="project" />
-    <orderEntry type="library" name="com.journeyapps:zxing-android-embedded-3.6.0" level="project" />
-    <orderEntry type="library" name="android.arch.lifecycle:viewmodel-1.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-core-ui-27.1.0" level="project" />
-    <orderEntry type="library" name="org.apache.commons:commons-csv:1.5@jar" level="project" />
-    <orderEntry type="library" name="com.android.support:support-annotations:27.1.0@jar" level="project" />
-    <orderEntry type="library" name="com.android.support:recyclerview-v7-27.1.0" level="project" />
-    <orderEntry type="library" name="android.arch.lifecycle:livedata-core-1.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-media-compat-27.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-fragment-27.1.0" level="project" />
-    <orderEntry type="library" name="com.google.zxing:core:3.3.2@jar" level="project" />
-    <orderEntry type="library" name="com.android.support:support-v4-27.1.0" level="project" />
-    <orderEntry type="library" name="android.arch.lifecycle:runtime-1.1.0" level="project" />
-    <orderEntry type="library" name="com.android.support:support-vector-drawable-27.1.0" level="project" />
-    <orderEntry type="library" name="android.arch.core:runtime-1.1.0" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:transition-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-v4-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.journeyapps:zxing-android-embedded-3.6.0" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.lifecycle:common:1.1.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-fragment-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-annotations:27.1.1@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:animated-vector-drawable-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.core:runtime-1.1.0" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-compat-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:design-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.google.zxing:core:3.3.2@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:appcompat-v7-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.lifecycle:viewmodel-1.1.0" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.lifecycle:livedata-core-1.1.0" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:recyclerview-v7-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-vector-drawable-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-media-compat-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: org.apache.commons:commons-csv:1.5@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-core-ui-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.core:common:1.1.0@jar" level="project" />
+    <orderEntry type="library" name="Gradle: com.android.support:support-core-utils-27.1.1" level="project" />
+    <orderEntry type="library" name="Gradle: android.arch.lifecycle:runtime-1.1.0" level="project" />
   </component>
 </module>
\ No newline at end of file
diff --git a/app/build.gradle b/app/build.gradle
index 89f4d29..b2664b1 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -23,9 +23,9 @@ android {
 
 dependencies {
     runtimeOnly fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'com.android.support:appcompat-v7:27.1.0'
-    implementation 'com.android.support:design:27.1.0'
-    implementation 'com.android.support:support-fragment:27.1.0'
+    implementation 'com.android.support:appcompat-v7:27.1.1'
+    implementation 'com.android.support:design:27.1.1'
+    implementation 'com.android.support:support-fragment:27.1.1'
     implementation 'com.journeyapps:zxing-android-embedded:3.6.0'
     implementation 'org.apache.commons:commons-csv:1.5'
 }
diff --git a/build.gradle b/build.gradle
index 7acba19..fe4b039 100644
--- a/build.gradle
+++ b/build.gradle
@@ -6,7 +6,7 @@ buildscript {
         google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.2'
     }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index d522f09..786f5a4 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ 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-4.4-all.zip