diff --git a/.github/dependabot.yaml b/.github/dependabot.yaml
new file mode 100644
index 0000000..dcd638d
--- /dev/null
+++ b/.github/dependabot.yaml
@@ -0,0 +1,7 @@
+version: 2
+
+updates:
+    -   package-ecosystem: 'github-actions'
+        directory: '/'
+        schedule:
+            interval: 'daily'
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index b8456d1..24c9b93 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -11,12 +11,7 @@ jobs:
                 with:
                     php-version: 8.0
                     coverage: none
-            -   uses: actions/cache@v2
-                with:
-                    path: vendor
-                    key: php-8.0-vendor-${{ hashFiles('**/composer.json') }}
-                    restore-keys: php-8.0-vendor-
-            -   run: composer install --no-interaction --no-ansi --no-suggest
+            -   uses: ramsey/composer-install@v2
             -   id: set-php-versions
                 run: echo "::set-output name=php-versions::$(bin/devtools list:php-versions)"
             -   id: set-tools
@@ -38,11 +33,6 @@ jobs:
             -   uses: shivammathur/setup-php@v2
                 with:
                     php-version: ${{ matrix.php-version }}
-            -   uses: actions/cache@v2
-                with:
-                    path: vendor
-                    key: php-${{ matrix.php-version }}-vendor-${{ hashFiles('**/composer.json') }}
-                    restore-keys: php-${{ matrix.php-version }}-vendor-
-            -   run: composer install --no-interaction --no-ansi --no-suggest
+            -   uses: ramsey/composer-install@v2
 
             -   run: bin/devtools ${{ matrix.tool }}
diff --git a/.gitignore b/.gitignore
index 8db5c68..0c3b072 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@
 .phpcs-cache
 .phpunit.result.cache
 composer.lock
+infection-log.txt
 vendor
diff --git a/composer.json b/composer.json
index 1e35c57..d7d4b3d 100644
--- a/composer.json
+++ b/composer.json
@@ -13,16 +13,23 @@
             "MyOnlineStore\\DevTools\\Tests\\": "tests/"
         }
     },
+    "config": {
+        "allow-plugins": {
+            "dealerdirect/phpcodesniffer-composer-installer": true,
+            "infection/extension-installer": true
+        }
+    },
     "require": {
         "php": "^7.4 || ^8.0",
-        "symfony/console": "^5.3",
-        "composer/semver": "^3.2",
-        "symfony/process": "^5.3"
+        "symfony/console": "^5.4 || ^6.0",
+        "composer/semver": "^3.3",
+        "symfony/process": "^5.4 || ^6.0",
+        "roave/infection-static-analysis-plugin": "^1.18"
     },
     "require-dev": {
         "roave/security-advisories": "dev-latest",
         "myonlinestore/coding-standard": "^3.1",
-        "vimeo/psalm": "^4.10",
+        "vimeo/psalm": "^4.22",
         "phpunit/phpunit": "^8.5 || ^9.5"
     },
     "bin": [
diff --git a/infection.json.dist b/infection.json.dist
new file mode 100644
index 0000000..8520ba8
--- /dev/null
+++ b/infection.json.dist
@@ -0,0 +1,11 @@
+{
+    "timeout": 5,
+    "source": {
+        "directories": [
+            "src"
+        ]
+    },
+    "logs": {
+        "text": "infection-log.txt"
+    }
+}
diff --git a/phpcs.xml.dist b/phpcs.xml.dist
index 46a66e3..d773b99 100644
--- a/phpcs.xml.dist
+++ b/phpcs.xml.dist
@@ -10,6 +10,7 @@
     <arg value="sp"/>
 
     <file>src</file>
+    <file>tests</file>
 
     <rule ref="MyOnlineStore"/>
 </ruleset>
diff --git a/psalm.xml.dist b/psalm.xml.dist
index eb94feb..40cebd0 100644
--- a/psalm.xml.dist
+++ b/psalm.xml.dist
@@ -2,7 +2,6 @@
 <psalm
     errorLevel="1"
     resolveFromConfigFile="true"
-    totallyTyped="true"
     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"