diff --git a/README.md b/README.md
index ed0bab4..328a69a 100644
--- a/README.md
+++ b/README.md
@@ -45,6 +45,8 @@ Redis command                                    | Description
 **SADD** *key* *member* *[member ...]*           | Adds one or more members to a set
 **SISMEMBER** *key* *member*                     | Determines if a member is in a set
 **SMEMBERS** *key*                               | Gets all the members in a set
+**SUNION** *key* *[key ...]*                     | Returns the members of the set resulting from the union of all the given sets.
+**SINTER** *key* *[key ...]*                     | Returns the members of the set resulting from the intersection of all the given sets.
 **SCARD** *key*                                  | Get cardinality of set (count of members)
 **SREM** *key* *member* *[member ...]*           | Removes one or more members from a set
 **HDEL** *key* *field*                           | Delete one hash fields
diff --git a/src/M6Web/Component/RedisMock/RedisMock.php b/src/M6Web/Component/RedisMock/RedisMock.php
index f392016..0dd8e00 100644
--- a/src/M6Web/Component/RedisMock/RedisMock.php
+++ b/src/M6Web/Component/RedisMock/RedisMock.php
@@ -308,6 +308,35 @@ public function smembers($key)
         return $this->returnPipedInfo(self::$dataValues[$this->storage][$key]);
     }
 
+    public function sunion($key)
+    {
+        $this->stopPipeline();
+        $keys = is_array($key) ? $key : func_get_args();
+        $result = [];
+        foreach ($keys as $key) {
+            $result = array_merge($result, $this->smembers($key));
+        }
+        $result = array_values(array_unique($result));
+
+        $this->restorePipeline();
+
+        return $this->returnPipedInfo($result);
+    }
+
+    public function sinter($key)
+    {
+        $this->stopPipeline();
+        $keys = is_array($key) ? $key : func_get_args();
+        $result = [];
+        foreach ($keys as $key) {
+            $result[] = $this->smembers($key);
+        }
+        $result = call_user_func_array('array_intersect', $result);
+
+        $this->restorePipeline();
+
+        return $this->returnPipedInfo($result);
+    }
 
     public function scard($key)
     {