diff --git a/app/build.gradle b/app/build.gradle
index ab5a544..87b4faa 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -33,8 +33,8 @@ dependencies {
 
   implementation 'androidx.constraintlayout:constraintlayout:2.0.0-alpha2'
 
-  implementation 'com.squareup.okhttp3:okhttp:3.11.0'
-  implementation 'com.squareup.retrofit2:retrofit:2.4.0'
+  implementation 'com.squareup.okhttp3:okhttp:3.12.1'
+  implementation 'com.squareup.retrofit2:retrofit:2.5.0'
   implementation 'com.squareup.retrofit2:converter-gson:2.4.0'
 
   implementation 'com.squareup.picasso:picasso:2.71828'
diff --git a/app/src/main/java/com/prolificinteractive/sample/CharactersAdapter.kt b/app/src/main/java/com/prolificinteractive/sample/CharactersAdapter.kt
index 666f99f..cf62217 100644
--- a/app/src/main/java/com/prolificinteractive/sample/CharactersAdapter.kt
+++ b/app/src/main/java/com/prolificinteractive/sample/CharactersAdapter.kt
@@ -15,7 +15,7 @@ import kotlinx.android.synthetic.main.item_character.view.name
 
 class CharactersAdapter(var data: List<Character> = emptyList()) : RecyclerView.Adapter<ItemViewHolder>() {
 
-  class ItemViewHolder(val view: View) : RecyclerView.ViewHolder(view) {
+  class ItemViewHolder(view: View) : RecyclerView.ViewHolder(view) {
     val image: ImageView = view.image
     val name: TextView = view.name
   }
diff --git a/app/src/main/java/com/prolificinteractive/sample/api/RickAndMortyApi.kt b/app/src/main/java/com/prolificinteractive/sample/api/RickAndMortyApi.kt
index e748428..67a2c49 100644
--- a/app/src/main/java/com/prolificinteractive/sample/api/RickAndMortyApi.kt
+++ b/app/src/main/java/com/prolificinteractive/sample/api/RickAndMortyApi.kt
@@ -5,5 +5,5 @@ import retrofit2.Call
 import retrofit2.http.GET
 
 interface RickAndMortyApi {
-  @GET("  character/") fun getCharacters(): Call<Characters>
+  @GET("character/") fun getCharacters(): Call<Characters>
 }
\ No newline at end of file
diff --git a/birdo/build.gradle b/birdo/build.gradle
index 519b622..d654738 100644
--- a/birdo/build.gradle
+++ b/birdo/build.gradle
@@ -2,6 +2,7 @@ apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 apply plugin: 'kotlin-android-extensions'
 apply plugin: 'com.github.dcendents.android-maven'
+apply plugin: 'org.jetbrains.dokka-android'
 
 android {
   compileSdkVersion 28
@@ -15,7 +16,9 @@ android {
 }
 
 dependencies {
-  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
+  implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
+
+  api 'io.palaima.debugdrawer:debugdrawer-base:0.8.0'
 
   implementation 'io.palaima.debugdrawer:debugdrawer-view:0.8.0'
   implementation 'io.palaima.debugdrawer:debugdrawer-commons:0.8.0'
@@ -32,12 +35,12 @@ dependencies {
   implementation 'com.jakewharton.timber:timber:4.7.1'
   api 'com.squareup:seismic:1.0.2'
 
-  compileOnly 'com.squareup.okhttp3:okhttp:3.11.0'
+  compileOnly 'com.squareup.okhttp3:okhttp:3.12.1'
   compileOnly "com.squareup.picasso:picasso:2.71828"
 
   implementation 'androidx.appcompat:appcompat:1.0.2'
 
   testImplementation 'junit:junit:4.12'
-  androidTestImplementation 'androidx.test:runner:1.1.0'
-  androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
+  androidTestImplementation 'androidx.test:runner:1.1.1'
+  androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 }
diff --git a/build.gradle b/build.gradle
index 10f4e3e..1a50e5f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,16 +1,19 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
-  ext.kotlin_version = '1.3.10'
+  ext.kotlin_version = '1.3.21'
+  ext.dokka_version = '0.9.17'
 
   repositories {
     google()
     jcenter()
   }
+
   dependencies {
-    classpath 'com.android.tools.build:gradle:3.2.1'
+    classpath 'com.android.tools.build:gradle:3.3.1'
     classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     classpath 'com.github.dcendents:android-maven-gradle-plugin:2.0'
+    classpath "org.jetbrains.dokka:dokka-android-gradle-plugin:$dokka_version"
   }
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 01b8bf6..87b738c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index fb7ef98..5a7a6a1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip
diff --git a/gradlew b/gradlew
index cccdd3d..af6708f 100755
--- a/gradlew
+++ b/gradlew
@@ -28,7 +28,7 @@ APP_NAME="Gradle"
 APP_BASE_NAME=`basename "$0"`
 
 # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS=""
+DEFAULT_JVM_OPTS='"-Xmx64m"'
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD="maximum"
diff --git a/gradlew.bat b/gradlew.bat
index e95643d..0f8d593 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -14,7 +14,7 @@ set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-set DEFAULT_JVM_OPTS=
+set DEFAULT_JVM_OPTS="-Xmx64m"
 
 @rem Find java.exe
 if defined JAVA_HOME goto findJavaFromJavaHome