diff --git a/.travis.yml b/.travis.yml
index c424d22bc12e..b720d5b10270 100755
--- a/.travis.yml
+++ b/.travis.yml
@@ -30,7 +30,7 @@ services:
 before_install:
   - phpenv config-rm xdebug.ini || true
   - echo "extension = memcached.so" >> ~/.phpenv/versions/$(phpenv version-name)/etc/php.ini
-  - printf "\n" | pecl install -f redis-4.3.0
+  - printf "\n" | pecl install -f redis
   - travis_retry composer self-update
   - mysql -e 'CREATE DATABASE forge;'
 
diff --git a/src/Illuminate/Redis/Connections/PhpRedisConnection.php b/src/Illuminate/Redis/Connections/PhpRedisConnection.php
index c52496554949..23b0cbe16fe3 100644
--- a/src/Illuminate/Redis/Connections/PhpRedisConnection.php
+++ b/src/Illuminate/Redis/Connections/PhpRedisConnection.php
@@ -268,7 +268,7 @@ public function zrevrangebyscore($key, $min, $max, $options = [])
      */
     public function zinterstore($output, $keys, $options = [])
     {
-        return $this->command('zInter', [$output, $keys,
+        return $this->command('zinterstore', [$output, $keys,
             $options['weights'] ?? null,
             $options['aggregate'] ?? 'sum',
         ]);
@@ -284,7 +284,7 @@ public function zinterstore($output, $keys, $options = [])
      */
     public function zunionstore($output, $keys, $options = [])
     {
-        return $this->command('zUnion', [$output, $keys,
+        return $this->command('zunionstore', [$output, $keys,
             $options['weights'] ?? null,
             $options['aggregate'] ?? 'sum',
         ]);
diff --git a/tests/Redis/RedisConnectionTest.php b/tests/Redis/RedisConnectionTest.php
index 89d5064c118a..ea5788a13fdd 100644
--- a/tests/Redis/RedisConnectionTest.php
+++ b/tests/Redis/RedisConnectionTest.php
@@ -291,12 +291,16 @@ public function test_it_calculates_union_of_sorted_sets_and_stores()
 
     public function test_it_returns_range_in_sorted_set()
     {
-        foreach ($this->connections() as $redis) {
+        foreach ($this->connections() as $connector => $redis) {
             $redis->zadd('set', ['jeffrey' => 1, 'matt' => 5, 'taylor' => 10]);
             $this->assertEquals(['jeffrey', 'matt'], $redis->zrange('set', 0, 1));
             $this->assertEquals(['jeffrey', 'matt', 'taylor'], $redis->zrange('set', 0, -1));
 
-            $this->assertEquals(['jeffrey' => 1, 'matt' => 5], $redis->zrange('set', 0, 1, 'withscores'));
+            if ($connector === 'predis') {
+                $this->assertEquals(['jeffrey' => 1, 'matt' => 5], $redis->zrange('set', 0, 1, 'withscores'));
+            } else {
+                $this->assertEquals(['jeffrey' => 1, 'matt' => 5], $redis->zrange('set', 0, 1, true));
+            }
 
             $redis->flushall();
         }
@@ -304,12 +308,16 @@ public function test_it_returns_range_in_sorted_set()
 
     public function test_it_returns_rev_range_in_sorted_set()
     {
-        foreach ($this->connections() as $redis) {
+        foreach ($this->connections() as $connector => $redis) {
             $redis->zadd('set', ['jeffrey' => 1, 'matt' => 5, 'taylor' => 10]);
             $this->assertEquals(['taylor', 'matt'], $redis->ZREVRANGE('set', 0, 1));
             $this->assertEquals(['taylor', 'matt', 'jeffrey'], $redis->ZREVRANGE('set', 0, -1));
 
-            $this->assertEquals(['matt' => 5, 'taylor' => 10], $redis->ZREVRANGE('set', 0, 1, 'withscores'));
+            if ($connector === 'predis') {
+                $this->assertEquals(['matt' => 5, 'taylor' => 10], $redis->ZREVRANGE('set', 0, 1, 'withscores'));
+            } else {
+                $this->assertEquals(['matt' => 5, 'taylor' => 10], $redis->ZREVRANGE('set', 0, 1, true));
+            }
 
             $redis->flushall();
         }
@@ -550,8 +558,8 @@ public function test_it_persists_connection()
     public function connections()
     {
         $connections = [
-            $this->redis['predis']->connection(),
-            $this->redis['phpredis']->connection(),
+            'predis' => $this->redis['predis']->connection(),
+            'phpredis' => $this->redis['phpredis']->connection(),
         ];
 
         if (extension_loaded('redis')) {