diff --git a/composer.json b/composer.json
index e5e4c50..ae05e79 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     },
     "require-dev": {
         "nexendrie/code-quality": "@dev",
-        "phpstan/phpstan-nette": "^0.9",
+        "phpstan/phpstan-nette": "^0.10",
         "tracy/tracy": "^2.4"
     },
     "suggest": {
diff --git a/phpstan.neon b/phpstan.neon
index efbf8ac..adf932b 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -6,3 +6,10 @@ includes:
 parameters:
     ignoreErrors:
             - '#(Instantiated c|C)lass Texy not found#'
+            - '#Parameter \#1 \$input of static method Nette\\Neon\\Neon::decode\(\) expects string, string\|false given#'
+            - '#Construct empty\(\) is not allowed. Use more strict comparison#'
+            - '#Cannot call method format\(\) on DateTime\|false#'
+            - '#Only booleans are allowed in an if condition, mixed given#'
+            - '#Property EventCalendar\\Goog\\[a-zA-Z0-9\\_]+::\$[a-zA-Z0-9\\_]+ has no typehint specified#'
+            - '#Method EventCalendar\\Goog\\[a-zA-Z0-9\\_]+::[a-zA-Z0-9\\_]+\(\) has no return typehint specified#'
+            - '#Method EventCalendar\\Goog\\[a-zA-Z0-9\\_]+::[a-zA-Z0-9\\_]+\(\) has parameter \$[a-zA-Z0-9\\_]+ with no typehint specified#'
diff --git a/src/AbstractCalendar.php b/src/AbstractCalendar.php
index 6205dd1..c31e6c4 100644
--- a/src/AbstractCalendar.php
+++ b/src/AbstractCalendar.php
@@ -72,7 +72,7 @@ abstract protected function getTemplateFile(): string;
     /**
      * Specify the date on which the week starts
      */
-    public function setFirstDay(int $day)
+    public function setFirstDay(int $day): void
     {
         $this->firstDay = $day;
     }
@@ -80,14 +80,14 @@ public function setFirstDay(int $day)
     /**
      * Changes default options, see OPT constants for currently supported options for each type of calendar
      */
-    public function setOptions(array $options)
+    public function setOptions(array $options): void
     {
         foreach ($options as $key => $value) {
             $this->options[$key] = $value;
         }
     }
 
-    public function setEvents(IEventModel $events)
+    public function setEvents(IEventModel $events): void
     {
         $this->events = $events;
     }
diff --git a/src/BasicCalendar.php b/src/BasicCalendar.php
index 1e6d9f6..1cf3b61 100644
--- a/src/BasicCalendar.php
+++ b/src/BasicCalendar.php
@@ -17,7 +17,7 @@ abstract class BasicCalendar extends AbstractCalendar
     /**
      * set translator for calendar control
      */
-    public function setTranslator(\Nette\Localization\ITranslator $translator)
+    public function setTranslator(\Nette\Localization\ITranslator $translator): void
     {
         $this->translator = $translator;
     }
diff --git a/src/Goog/GoogCalendar.php b/src/Goog/GoogCalendar.php
index 15f0752..96cb479 100644
--- a/src/Goog/GoogCalendar.php
+++ b/src/Goog/GoogCalendar.php
@@ -67,7 +67,7 @@ protected function getTemplateFile(): string
         return __DIR__ . '/GoogCalendar.latte';
     }
     
-    public function setGoogAdapter(GoogAdapter $googAdapter)
+    public function setGoogAdapter(GoogAdapter $googAdapter): void
     {
         $this->googAdapter = $googAdapter;
     }
@@ -76,7 +76,7 @@ public function setGoogAdapter(GoogAdapter $googAdapter)
      * Do not set events directly, use GoogAdapter. Mix of events from Google with customs events is not implemented yet.
      * @throws \LogicException
      */
-    public function setEvents(\EventCalendar\IEventModel $events)
+    public function setEvents(\EventCalendar\IEventModel $events): void
     {
         throw new \LogicException('Do not set events directly, use GoogAdapter.');
     }
diff --git a/src/Goog/GoogData.php b/src/Goog/GoogData.php
index d48354c..0fb04f7 100644
--- a/src/Goog/GoogData.php
+++ b/src/Goog/GoogData.php
@@ -26,12 +26,12 @@ class GoogData implements IEventModel
      */
     private $description;
     
-    public function setName(string $name)
+    public function setName(string $name): void
     {
         $this->name = $name;
     }
     
-    public function setDescription(string $description)
+    public function setDescription(string $description): void
     {
         $this->description = $description;
     }
diff --git a/src/Simple/SimpleCalendar.php b/src/Simple/SimpleCalendar.php
index 730c1f6..2ec6a02 100644
--- a/src/Simple/SimpleCalendar.php
+++ b/src/Simple/SimpleCalendar.php
@@ -35,6 +35,7 @@ class SimpleCalendar extends AbstractCalendar
      */
     public const OPT_BOTTOM_NAV_NEXT = 'bottomNavNext';
 
+    /** @var string */
     protected $language = self::LANG_EN;
     
     public function __construct()
@@ -48,7 +49,7 @@ public function __construct()
         ]);
     }
     
-    public function setLanguage(string $lang)
+    public function setLanguage(string $lang): void
     {
         $this->language = $lang;
     }
diff --git a/tests/EventCalendar/Simple/TestEvent.php b/tests/EventCalendar/Simple/TestEvent.php
index d9b48bc..d5c600a 100644
--- a/tests/EventCalendar/Simple/TestEvent.php
+++ b/tests/EventCalendar/Simple/TestEvent.php
@@ -7,7 +7,8 @@
 
 final class TestEvent implements IEventModel
 {
-    
+
+    /** @var array */
     private $events = [];
     
     public function __construct()