diff --git a/.github/workflows/create-coverage-report.yml b/.github/workflows/create-coverage-report.yml
index 056ce07..dde1094 100644
--- a/.github/workflows/create-coverage-report.yml
+++ b/.github/workflows/create-coverage-report.yml
@@ -13,7 +13,7 @@ on:
       - "**"
   pull_request:
     branches:
-      - "main"
+      - "master"
     paths:
       - "src/**.php"
       - "tests/**.php"
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index db6fa98..9e457cf 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -15,6 +15,36 @@ Versioning <https://semver.org/spec/v2.0.0.html>`__.
 `[Unreleased] <https://campoint.github.io/postgrest-php/latest>`_
 -----------------------------------------------------------
 
+Added
+~~~~~
+
+-  n/a
+
+Changed
+~~~~~~~
+
+-  n/a
+
+Deprecated
+~~~~~~~~~~
+
+-  n/a
+
+Removed
+~~~~~~~
+
+-  n/a
+
+Fixed
+~~~~~
+
+-  Initialize properties with default values, to avoid errors when calling methods before setting properties
+
+Security
+~~~~~~~~
+
+-  n/a
+
 `[0.0.1] <https://campoint.github.io/postgrest-php/0.0.1>`_ - 2023-07-24
 ------------------------------------------------------------------------
 
diff --git a/composer.json b/composer.json
index 4f3eb62..e9f2c42 100644
--- a/composer.json
+++ b/composer.json
@@ -3,7 +3,6 @@
     "description": "PostgREST client for PHP. This library provides a synchronous and asynchronous interface to PostgREST.",
     "type": "library",
     "license": "BSD-3-Clause",
-    "version": "0.0.1",
     "authors": [
         {
             "name": "Kirill Fuks",
diff --git a/src/RequestBuilder/PostgrestRequestBuilder.php b/src/RequestBuilder/PostgrestRequestBuilder.php
index d2c180a..51f8fe4 100644
--- a/src/RequestBuilder/PostgrestRequestBuilder.php
+++ b/src/RequestBuilder/PostgrestRequestBuilder.php
@@ -53,6 +53,7 @@ final public function __construct(
             'Content-Profile' => $this->schemaName,
         ];
         $this->filters = [];
+        $this->method = '';
         $this->body = null;
         $this->helper = new Helper();
     }
diff --git a/src/Response/Exceptions/PostgrestErrorException.php b/src/Response/Exceptions/PostgrestErrorException.php
index 62ae551..ee62771 100644
--- a/src/Response/Exceptions/PostgrestErrorException.php
+++ b/src/Response/Exceptions/PostgrestErrorException.php
@@ -14,15 +14,15 @@
  */
 class PostgrestErrorException extends Exception
 {
-    private ?int $statusCode;
+    private ?int $statusCode = null;
 
-    private ?string $reasonPhrase;
+    private ?string $reasonPhrase = null;
 
-    private ?string $responseBody;
+    private ?string $responseBody = null;
 
-    private ?string $postgrestErrorCode;
+    private ?string $postgrestErrorCode = null;
 
-    private ?string $postgrestErrorMessage;
+    private ?string $postgrestErrorMessage = null;
 
     /**
      * Create a new PostgrestErrorException.
diff --git a/src/Response/PostgrestResponse.php b/src/Response/PostgrestResponse.php
index b263987..30cda52 100644
--- a/src/Response/PostgrestResponse.php
+++ b/src/Response/PostgrestResponse.php
@@ -28,7 +28,7 @@ class PostgrestResponse
     /**
      * @var array<string, string|int|float>
      */
-    private array $location;
+    private array $location = [];
 
     private int $contentRangeStart = 0;