diff --git a/src/Serializer/Handler/DependsHandler.php b/src/Serializer/Handler/DependsHandler.php
index fbda42d..c26cfab 100644
--- a/src/Serializer/Handler/DependsHandler.php
+++ b/src/Serializer/Handler/DependsHandler.php
@@ -73,12 +73,12 @@ class DependsHandler implements SubscribingHandlerInterface
             $list[] = $task->getUuid();
         }
 
-        return $visitor->visitString(implode(',', $list), $type, $context);
+        return $visitor->visitArray($list, $type, $context);
     }
 
     /**
      * @param VisitorInterface $visitor
-     * @param string $data
+     * @param array $data
      * @param array $type
      * @return ArrayCollection
      */
@@ -90,7 +90,7 @@ class DependsHandler implements SubscribingHandlerInterface
 
         $tasks = [];
 
-        foreach (explode(',', $data) as $uuid) {
+        foreach ($data as $uuid) {
             $tasks[] = $this->taskManager->getReference($uuid);
         }
 
diff --git a/src/Task.php b/src/Task.php
index b4af602..220e012 100644
--- a/src/Task.php
+++ b/src/Task.php
@@ -274,6 +274,7 @@ class Task
 
         if (false !== $key = array_search($tag, $this->tags)) {
             unset($this->tags[$key]);
+            $this->tags = array_values($this->tags);
         }
     }
 
diff --git a/src/Taskwarrior.php b/src/Taskwarrior.php
index 5b2c974..91c7dec 100644
--- a/src/Taskwarrior.php
+++ b/src/Taskwarrior.php
@@ -67,7 +67,7 @@ class Taskwarrior
             $rcOptions
         );
 
-        if (version_compare($this->version(), '2.5.0.beta2') < 0) {
+        if (version_compare($this->version(), '2.5.0') < 0) {
             throw new TaskwarriorException(sprintf("Taskwarrior version %s isn't supported", $this->version()));
         }