diff --git a/src/ChannelManagers/RedisChannelManager.php b/src/ChannelManagers/RedisChannelManager.php
index 9b71d9a..f17e96e 100644
--- a/src/ChannelManagers/RedisChannelManager.php
+++ b/src/ChannelManagers/RedisChannelManager.php
@@ -160,7 +160,7 @@ class RedisChannelManager extends LocalChannelManager
     {
         $this->subscribeToTopic($connection->app->id, $channelName);
 
-        $this->addConnectionToSet($connection);
+        $this->addConnectionToSet($connection, Carbon::now());
 
         $this->addChannelToSet(
             $connection->app->id, $channelName
@@ -416,7 +416,7 @@ class RedisChannelManager extends LocalChannelManager
     public function connectionPonged(ConnectionInterface $connection): bool
     {
         // This will update the score with the current timestamp.
-        $this->addConnectionToSet($connection);
+        $this->addConnectionToSet($connection, Carbon::now());
 
         return parent::connectionPonged($connection);
     }
@@ -431,9 +431,7 @@ class RedisChannelManager extends LocalChannelManager
         $this->lock()->get(function () {
             $this->getConnectionsFromSet(0, now()->subMinutes(2)->format('U'))
                 ->then(function ($connections) {
-                    foreach ($connections as $connection => $score) {
-                        [$appId, $socketId] = explode(':', $connection);
-
+                    foreach ($connections as $appId => $socketId) {
                         $this->unsubscribeFromAllChannels(
                             $this->fakeConnectionForApp($appId, $socketId)
                         );
@@ -571,9 +569,11 @@ class RedisChannelManager extends LocalChannelManager
      */
     public function addConnectionToSet(ConnectionInterface $connection, $moment = null)
     {
+        $moment = $moment ? Carbon::parse($moment) : Carbon::now();
+
         $this->publishClient->zadd(
             $this->getRedisKey(null, null, ['sockets']),
-            Carbon::parse($moment)->format('U'), "{$connection->app->id}:{$connection->socketId}"
+            $moment->format('U'), "{$connection->app->id}:{$connection->socketId}"
         );
     }
 
@@ -597,16 +597,26 @@ class RedisChannelManager extends LocalChannelManager
      *
      * @param  int  $start
      * @param  int  $stop
+     * @param  bool  $strict
      * @return PromiseInterface
      */
-    public function getConnectionsFromSet(int $start = 0, int $stop = 0)
+    public function getConnectionsFromSet(int $start = 0, int $stop = 0, bool $strict = true)
     {
-        return $this->publishClient->zrange(
+        if ($strict) {
+            $start = "({$start}";
+            $stop = "({$stop}";
+        }
+
+        return $this->publishClient->zrangebyscore(
             $this->getRedisKey(null, null, ['sockets']),
-            $start, $stop, 'withscores'
+            $start, $stop
         )
         ->then(function ($list) {
-            return Helpers::redisListToArray($list);
+            return collect($list)->mapWithKeys(function ($appWithSocket) {
+                [$appId, $socketId] = explode(':', $appWithSocket);
+
+                return [$appId => $socketId];
+            })->toArray();
         });
     }
 
diff --git a/tests/Mocks/PromiseResolver.php b/tests/Mocks/PromiseResolver.php
index bbc0df7..dfec306 100644
--- a/tests/Mocks/PromiseResolver.php
+++ b/tests/Mocks/PromiseResolver.php
@@ -52,8 +52,8 @@ class PromiseResolver implements PromiseInterface
         $result = call_user_func($onFulfilled, $result);
 
         return $result instanceof PromiseInterface
-            ? $result
-            : new FulfilledPromise($result);
+            ? new self($result, $this->loop)
+            : new self(new FulfilledPromise($result), $this->loop);
     }
 
     /**