diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6db2be3f..6328e759 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,11 @@ CHANGE LOG
 * UPCOMING
 
 
+## 4.1.1 (UPCOMING)
+
+* Fixed incorrect floating IP IDs
+
+
 ## 4.1.0 (25/01/2021)
 
 * Added app platform API support
diff --git a/src/Api/FloatingIp.php b/src/Api/FloatingIp.php
index 7b7a8bd3..2495ab84 100644
--- a/src/Api/FloatingIp.php
+++ b/src/Api/FloatingIp.php
@@ -38,15 +38,15 @@ public function getAll()
     }
 
     /**
-     * @param int $id
+     * @param string $ipAddress
      *
      * @throws ExceptionInterface
      *
      * @return FloatingIpEntity
      */
-    public function getById(int $id)
+    public function getById(string $ipAddress)
     {
-        $ip = $this->get(\sprintf('floating_ips/%s', $id));
+        $ip = $this->get(\sprintf('floating_ips/%s', $ipAddress));
 
         return new FloatingIpEntity($ip->floating_ip);
     }
@@ -80,27 +80,27 @@ public function createReserved(string $regionSlug)
     }
 
     /**
-     * @param int $id
+     * @param string $ipAddress
      *
      * @throws ExceptionInterface
      *
      * @return void
      */
-    public function remove(int $id): void
+    public function remove(string $ipAddress): void
     {
-        $this->delete(\sprintf('floating_ips/%s', $id));
+        $this->delete(\sprintf('floating_ips/%s', $ipAddress));
     }
 
     /**
-     * @param int $id
+     * @param string $ipAddress
      *
      * @throws ExceptionInterface
      *
      * @return ActionEntity[]
      */
-    public function getActions(int $id)
+    public function getActions(string $ipAddress)
     {
-        $actions = $this->get(\sprintf('floating_ips/%s/actions', $id));
+        $actions = $this->get(\sprintf('floating_ips/%s/actions', $ipAddress));
 
         return \array_map(function ($action) {
             return new ActionEntity($action);
@@ -108,56 +108,56 @@ public function getActions(int $id)
     }
 
     /**
-     * @param int $id
-     * @param int $actionId
+     * @param string $ipAddress
+     * @param int    $actionId
      *
      * @throws ExceptionInterface
      *
      * @return ActionEntity
      */
-    public function getActionById(int $id, int $actionId)
+    public function getActionById(string $ipAddress, int $actionId)
     {
-        $action = $this->get(\sprintf('floating_ips/%s/actions/%d', $id, $actionId));
+        $action = $this->get(\sprintf('floating_ips/%s/actions/%d', $ipAddress, $actionId));
 
         return new ActionEntity($action->action);
     }
 
     /**
-     * @param int $id
-     * @param int $dropletId
+     * @param string $ipAddress
+     * @param int    $dropletId
      *
      * @throws ExceptionInterface
      *
      * @return ActionEntity
      */
-    public function assign(int $id, int $dropletId)
+    public function assign(string $ipAddress, int $dropletId)
     {
-        return $this->executeAction($id, ['type' => 'assign', 'droplet_id' => $dropletId]);
+        return $this->executeAction($ipAddress, ['type' => 'assign', 'droplet_id' => $dropletId]);
     }
 
     /**
-     * @param int $id
+     * @param string $ipAddress
      *
      * @throws ExceptionInterface
      *
      * @return ActionEntity
      */
-    public function unassign(int $id)
+    public function unassign(string $ipAddress)
     {
-        return $this->executeAction($id, ['type' => 'unassign']);
+        return $this->executeAction($ipAddress, ['type' => 'unassign']);
     }
 
     /**
-     * @param int   $id
-     * @param array $options
+     * @param string $ipAddress
+     * @param array  $options
      *
      * @throws ExceptionInterface
      *
      * @return ActionEntity
      */
-    private function executeAction(int $id, array $options)
+    private function executeAction(string $ipAddress, array $options)
     {
-        $action = $this->post(\sprintf('floating_ips/%s/actions', $id), $options);
+        $action = $this->post(\sprintf('floating_ips/%s/actions', $ipAddress), $options);
 
         return new ActionEntity($action->action);
     }
diff --git a/vendor-bin/phpstan/composer.json b/vendor-bin/phpstan/composer.json
index f57323a7..5ed3ed35 100644
--- a/vendor-bin/phpstan/composer.json
+++ b/vendor-bin/phpstan/composer.json
@@ -1,7 +1,7 @@
 {
     "require": {
         "php": "^7.2.5 || ^8.0",
-        "phpstan/phpstan": "0.12.69",
+        "phpstan/phpstan": "0.12.71",
         "phpstan/phpstan-deprecation-rules": "0.12.6",
         "phpstan/phpstan-strict-rules": "0.12.9",
         "thecodingmachine/phpstan-strict-rules": "0.12.1",