diff --git a/example/android/app/src/main/java/ru/sokomishalov/skraper/example/activity/ListViewActivity.kt b/example/android/app/src/main/java/ru/sokomishalov/skraper/example/activity/ListViewActivity.kt
index 4a1df0a4..8378996d 100644
--- a/example/android/app/src/main/java/ru/sokomishalov/skraper/example/activity/ListViewActivity.kt
+++ b/example/android/app/src/main/java/ru/sokomishalov/skraper/example/activity/ListViewActivity.kt
@@ -22,7 +22,7 @@ import android.widget.ProgressBar
 import androidx.appcompat.app.AppCompatActivity
 import kotlinx.coroutines.*
 import ru.sokomishalov.skraper.SkraperClient
-import ru.sokomishalov.skraper.client.okhttp3.OkHttp3SkraperClient
+import ru.sokomishalov.skraper.client.okhttp.OkHttpSkraperClient
 import ru.sokomishalov.skraper.example.R
 import ru.sokomishalov.skraper.example.adapter.PostsAdapter
 import ru.sokomishalov.skraper.provider.facebook.FacebookSkraper
@@ -74,6 +74,6 @@ class ListViewActivity : AppCompatActivity(), CoroutineScope {
 
     companion object {
         private const val DEFAULT_LIMIT: Int = 5
-        private val DEFAULT_CLIENT: SkraperClient = OkHttp3SkraperClient()
+        private val DEFAULT_CLIENT: SkraperClient = OkHttpSkraperClient()
     }
 }
\ No newline at end of file
diff --git a/example/android/app/src/main/java/ru/sokomishalov/skraper/example/adapter/PostsAdapter.kt b/example/android/app/src/main/java/ru/sokomishalov/skraper/example/adapter/PostsAdapter.kt
index 4853b33c..54df8de9 100644
--- a/example/android/app/src/main/java/ru/sokomishalov/skraper/example/adapter/PostsAdapter.kt
+++ b/example/android/app/src/main/java/ru/sokomishalov/skraper/example/adapter/PostsAdapter.kt
@@ -13,6 +13,10 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+@file:Suppress(
+        "MoveVariableDeclarationIntoWhen"
+)
+
 package ru.sokomishalov.skraper.example.adapter
 
 import android.content.Context
@@ -25,9 +29,10 @@ import android.widget.TextView
 import android.widget.VideoView
 import com.squareup.picasso.Picasso
 import ru.sokomishalov.skraper.example.R
-import ru.sokomishalov.skraper.model.AttachmentType.IMAGE
-import ru.sokomishalov.skraper.model.AttachmentType.VIDEO
+import ru.sokomishalov.skraper.model.Audio
+import ru.sokomishalov.skraper.model.Image
 import ru.sokomishalov.skraper.model.Post
+import ru.sokomishalov.skraper.model.Video
 
 class PostsAdapter(
         private val context: Context,
@@ -48,19 +53,19 @@ class PostsAdapter(
         val post = data[position]
         val attachment = post.media.firstOrNull()
 
-        if (attachment != null) {
-            when (attachment.type) {
-                IMAGE -> with(vh.image) {
-                    Picasso
-                            .get()
-                            .load(attachment.url)
-                            .into(this)
-                }
-                VIDEO -> with(vh.video) {
-                    setVideoPath(attachment.url)
-                    start()
-                }
+        when (attachment) {
+            is Image -> with(vh.image) {
+                Picasso
+                        .get()
+                        .load(attachment.url)
+                        .into(this)
+            }
+            is Video -> with(vh.video) {
+                setVideoPath(attachment.url)
+                start()
             }
+            is Audio,
+            null -> Unit
         }
 
         vh.tvTitle.text = data[position].text
diff --git a/example/android/gradle/wrapper/gradle-wrapper.properties b/example/android/gradle/wrapper/gradle-wrapper.properties
index 286439dd..5007d0a1 100644
--- a/example/android/gradle/wrapper/gradle-wrapper.properties
+++ b/example/android/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 #Wed Feb 12 12:02:18 MSK 2020
 distributionBase=GRADLE_USER_HOME
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.2-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
 distributionPath=wrapper/dists
 zipStorePath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
diff --git a/skrapers/src/main/kotlin/ru/sokomishalov/skraper/provider/flickr/FlickrSkraper.kt b/skrapers/src/main/kotlin/ru/sokomishalov/skraper/provider/flickr/FlickrSkraper.kt
index 2b9c267b..dc5ee381 100644
--- a/skrapers/src/main/kotlin/ru/sokomishalov/skraper/provider/flickr/FlickrSkraper.kt
+++ b/skrapers/src/main/kotlin/ru/sokomishalov/skraper/provider/flickr/FlickrSkraper.kt
@@ -204,16 +204,14 @@ class FlickrSkraper @JvmOverloads constructor(
     }
 
     private fun JsonNode.extractPageNick(): String? {
-        return this
-                .getFirstByPath("photostream-models", "person-models")
+        return getFirstByPath("photostream-models", "person-models")
                 ?.firstOrNull()
                 ?.getFirstByPath("owner.pathAlias", "pathAlias")
                 ?.unescapeNode()
     }
 
     private fun JsonNode.extractPageName(): String? {
-        return this
-                .getFirstByPath("person-models", "photostream-models")
+        return getFirstByPath("person-models", "photostream-models")
                 ?.firstOrNull()
                 ?.getFirstByPath("owner.username", "username")
                 ?.unescapeNode()