diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 879203e..5210368 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        php: [8.1, 8.2, 8.3]
+        php: [8.1, 8.2, 8.3, 8.4]
 
     steps:
     - name: Checkout code
diff --git a/readme.md b/readme.md
index 3c26e32..8b353df 100644
--- a/readme.md
+++ b/readme.md
@@ -9,7 +9,7 @@ A Codeception module for testing web application over HTTP.
 
 ## Requirements
 
-* `PHP 8.0` or higher.
+* `PHP 8.1` or higher.
 
 ## Installation
 
diff --git a/tests/unit.suite.yml b/tests/unit.suite.yml
index 5399cf4..1c448f5 100644
--- a/tests/unit.suite.yml
+++ b/tests/unit.suite.yml
@@ -1,5 +1,5 @@
 # Codeception Test Suite Configuration
 
 # suite for unit (internal) tests.
-error_level: "E_ALL | E_STRICT"
+error_level: "E_ALL"
 class_name: UnitTester