diff --git a/docs/index.html b/docs/index.html
index 6f881f5..5f10e27 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -102,13 +102,13 @@
         <h3 id="resultH"></h3>
         <p id="resultP"></p>
         <p>Your response:</p>
-        <iframe id="respyt" width="560" height="315" src="https://www.youtube.com/embed/" frameborder="0"
+        <iframe id="respyt" width="496" height="279" src="https://www.youtube.com/embed/" frameborder="0"
                 allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture"
                 allowfullscreen></iframe>
     </div>
     <div id="goodBlock" style="display: none">
         <p>Correct video:</p>
-        <iframe id="goodyt" width="560" height="315" src="https://www.youtube.com/embed/" frameborder="0"
+        <iframe id="goodyt" width="496" height="279" src="https://www.youtube.com/embed/" frameborder="0"
                 allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture"
                 allowfullscreen></iframe>
     </div>
diff --git a/pom.xml b/pom.xml
index 39dd886..6eb55c6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
         <dependency>
             <groupId>com.fasterxml.jackson.core</groupId>
             <artifactId>jackson-databind</artifactId>
-            <version>2.4.4</version>
+            <version>2.8.11</version>
         </dependency>
         <dependency>
             <groupId>com.google.apis</groupId>