diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..bc5af1c
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,43 @@
+name: Tests
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  tests:
+    runs-on: ubuntu-18.04
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '7.2'
+          tools: phpunit:9,psalm
+
+      - name: Setup problem matchers for PHPUnit
+        run: echo "::add-matcher::${{ runner.tool_cache }}/phpunit.json"
+
+      - name: Get composer cache directory
+        id: composercache
+        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
+
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.composercache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+
+      - run: composer install --no-interaction
+
+      - name: Psalm
+        run: psalm --output-format=github
+        if: always()
+
+      - name: PHPUnit
+        run: phpunit --coverage-text
+        if: always()
\ No newline at end of file
diff --git a/README.md b/README.md
index 42955ff..558065c 100644
--- a/README.md
+++ b/README.md
@@ -4,9 +4,7 @@
 
 _Make a site, make it fast._
 
-[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/Rarst/laps/badges/quality-score.png?b=master)](https://scrutinizer-ci.com/g/Rarst/laps/?branch=master)
-[![Build Status](https://scrutinizer-ci.com/g/Rarst/laps/badges/build.png?b=master)](https://scrutinizer-ci.com/g/Rarst/laps/build-status/master)
-[![Code Coverage](https://scrutinizer-ci.com/g/Rarst/laps/badges/coverage.png?b=master)](https://scrutinizer-ci.com/g/Rarst/laps/?branch=master)
+[![Tests Status](https://github.com/rarst/laps/actions/workflows/tests.yml/badge.svg)](https://github.com/Rarst/laps/actions/workflows/tests.yml)
 [![Total Downloads](https://img.shields.io/packagist/dt/rarst/laps.svg)](https://packagist.org/packages/rarst/laps)
 [![Latest Stable Version](https://img.shields.io/packagist/v/rarst/laps.svg?label=version)](https://packagist.org/packages/rarst/laps)
 [![PHP from Packagist](https://img.shields.io/packagist/php-v/rarst/laps.svg)](https://packagist.org/packages/rarst/laps)
@@ -37,9 +35,9 @@ API requests need to be authenticated as admin for performance data to be sent.
 
 ## Installation
 
-| [Composer](https://getcomposer.org/) (recommended) | Release archive |  
-| -------------------------------------------------- | -------- |  
-| `composer require rarst/laps` | [![Download Laps](https://img.shields.io/badge/download-laps.zip-blue?style=for-the-badge)](https://github.com/Rarst/laps/releases/latest/download/laps.zip) |  
+| [Composer](https://getcomposer.org/) (recommended) | Release archive |
+| -------------------------------------------------- | -------- |
+| `composer require rarst/laps` | [![Download Laps](https://img.shields.io/badge/download-laps.zip-blue?style=for-the-badge)](https://github.com/Rarst/laps/releases/latest/download/laps.zip)|
 
 ## Tests
 
diff --git a/phpunit.xml b/phpunit.xml
index 09db281..c11b319 100644
--- a/phpunit.xml
+++ b/phpunit.xml
@@ -1,15 +1,16 @@
-<phpunit bootstrap="vendor/autoload.php">
-    <testsuites>
-        <testsuite name="Laps">
-            <directory>tests</directory>
-        </testsuite>
-    </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">src</directory>
-            <exclude>
-                <directory suffix=".php">src/mustache/cache</directory>
-            </exclude>
-        </whitelist>
-    </filter>
-</phpunit>
\ No newline at end of file
+<?xml version="1.0"?>
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" bootstrap="vendor/autoload.php" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">src</directory>
+    </include>
+    <exclude>
+      <directory suffix=".php">src/mustache/cache</directory>
+    </exclude>
+  </coverage>
+  <testsuites>
+    <testsuite name="Laps">
+      <directory>tests</directory>
+    </testsuite>
+  </testsuites>
+</phpunit>
diff --git a/psalm.xml b/psalm.xml
index 1179766..3a3d264 100644
--- a/psalm.xml
+++ b/psalm.xml
@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 <psalm
-        totallyTyped="false"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xmlns="https://getpsalm.org/schema/config"
         xsi:schemaLocation="https://getpsalm.org/schema/config vendor/vimeo/psalm/config.xsd"
+        errorLevel="2"
 >
     <projectFiles>
         <directory name="src"/>