diff --git a/src/Actions/ManagesDowntime.php b/src/Actions/ManagesDowntime.php
index 3593bb9..a14548f 100644
--- a/src/Actions/ManagesDowntime.php
+++ b/src/Actions/ManagesDowntime.php
@@ -7,8 +7,8 @@
 trait ManagesDowntime
 {
     /**
-     * @param  string  $startedAt Short (2020-12-01) or long (2020-12-01 15:00:00) date format
-     * @param  string  $endedAt Short (2020-12-01) or long (2020-12-01 15:00:00) date format
+     * @param  string  $startedAt  Short (2020-12-01) or long (2020-12-01 15:00:00) date format
+     * @param  string  $endedAt  Short (2020-12-01) or long (2020-12-01 15:00:00) date format
      */
     public function downtime(int $siteId, string $startedAt, string $endedAt): array
     {
diff --git a/src/Actions/ManagesMaintenancePeriods.php b/src/Actions/ManagesMaintenancePeriods.php
index dc4bb0c..caffdd1 100644
--- a/src/Actions/ManagesMaintenancePeriods.php
+++ b/src/Actions/ManagesMaintenancePeriods.php
@@ -15,7 +15,7 @@ public function maintenancePeriods(int $siteId): array
     }
 
     /**
-     * @param  int  $stopMaintenanceAfterSeconds Stops after one hour by default
+     * @param  int  $stopMaintenanceAfterSeconds  Stops after one hour by default
      */
     public function startSiteMaintenance(int $siteId, int $stopMaintenanceAfterSeconds = 60 * 60): MaintenancePeriod
     {
@@ -32,8 +32,8 @@ public function stopSiteMaintenance(int $siteId)
     }
 
     /**
-     * @param  string  $startsAt Y-m-d H:i
-     * @param  string  $endsAt Y-m-d H:i
+     * @param  string  $startsAt  Y-m-d H:i
+     * @param  string  $endsAt  Y-m-d H:i
      */
     public function createSiteMaintenance(int $siteId, string $startsAt, string $endsAt): MaintenancePeriod
     {
diff --git a/src/Actions/ManagesPerformance.php b/src/Actions/ManagesPerformance.php
index 156b42b..42f0157 100644
--- a/src/Actions/ManagesPerformance.php
+++ b/src/Actions/ManagesPerformance.php
@@ -7,9 +7,9 @@
 trait ManagesPerformance
 {
     /**
-     * @param  string  $start Short (2020-12-01) or long (2020-12-01 15:00:00) date format
-     * @param  string  $end Short (2020-12-01) or long (2020-12-01 15:00:00) date format
-     * @param  string  $timeframe Should be 1m or 1h
+     * @param  string  $start  Short (2020-12-01) or long (2020-12-01 15:00:00) date format
+     * @param  string  $end  Short (2020-12-01) or long (2020-12-01 15:00:00) date format
+     * @param  string  $timeframe  Should be 1m or 1h
      */
     public function performanceRecords(
         int $siteId,
diff --git a/src/Resources/ApiResource.php b/src/Resources/ApiResource.php
index 0267c22..912b18e 100644
--- a/src/Resources/ApiResource.php
+++ b/src/Resources/ApiResource.php
@@ -12,7 +12,7 @@ class ApiResource
 
     protected ?OhDear $ohDear;
 
-    public function __construct(array $attributes, OhDear $ohDear = null)
+    public function __construct(array $attributes, ?OhDear $ohDear = null)
     {
         $this->attributes = $attributes;