diff --git a/backend/pom.xml b/backend/pom.xml
index 412fffd..7c2c774 100644
--- a/backend/pom.xml
+++ b/backend/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>com.wire.bots</groupId>
     <artifactId>roman</artifactId>
-    <version>1.18.7</version>
+    <version>1.18.8</version>
 
     <name>Roman</name>
     <description>Wire Bot API Proxy</description>
@@ -39,6 +39,11 @@
             <artifactId>lithium</artifactId>
             <version>${lithium.version}</version>
         </dependency>
+        <dependency>
+            <groupId>com.wire</groupId>
+            <artifactId>xenon</artifactId>
+            <version>1.5.2</version>
+        </dependency>
         <dependency>
             <groupId>com.lambdaworks</groupId>
             <artifactId>scrypt</artifactId>
diff --git a/backend/src/main/java/com/wire/bots/roman/Sender.java b/backend/src/main/java/com/wire/bots/roman/Sender.java
index aa15ce7..7358b3d 100644
--- a/backend/src/main/java/com/wire/bots/roman/Sender.java
+++ b/backend/src/main/java/com/wire/bots/roman/Sender.java
@@ -153,7 +153,7 @@ private UUID sendPicture(IncomingMessage message, UUID botId) throws Exception {
             final Attachment attachment = message.attachment;
 
             UUID messageId = UUID.randomUUID();
-            Picture preview = new Picture(messageId, attachment.mimeType);
+            ImagePreview preview = new ImagePreview(messageId, attachment.mimeType);
             preview.setHeight(attachment.height);
             preview.setWidth(attachment.width);
             preview.setSize(attachment.size.intValue());
@@ -162,11 +162,11 @@ private UUID sendPicture(IncomingMessage message, UUID botId) throws Exception {
 
             AssetBase asset;
             if (message.attachment.meta != null) {
-                asset = new Picture(preview.getMessageId(), attachment.mimeType);
+                asset = new ImageAsset(preview.getMessageId(), null, attachment.mimeType);
                 setAssetMetadata(asset, message.attachment.meta);
             } else if (message.attachment.data != null) {
                 final byte[] bytes = Base64.getDecoder().decode(message.attachment.data);
-                asset = new Picture(bytes, attachment.mimeType);
+                asset = new ImageAsset(messageId, bytes, attachment.mimeType);
                 asset.setMessageId(messageId);
                 uploadAssetData(wireClient, asset);
             } else {