diff --git a/composer.json b/composer.json
index e3744ba..ee40aee 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,9 @@
         "ext-tidy": "*",
         "ext-zip": "*",
         "phpunit/phpunit": "^9.6",
-        "squizlabs/php_codesniffer": "^3"
+        "squizlabs/php_codesniffer": "^3",
+        "silverstripe/standards": "^1",
+        "phpstan/extension-installer": "^1.3"
     },
     "autoload": {
         "psr-4": {
diff --git a/phpstan.neon.dist b/phpstan.neon.dist
new file mode 100644
index 0000000..beb9de3
--- /dev/null
+++ b/phpstan.neon.dist
@@ -0,0 +1,3 @@
+parameters:
+  paths:
+    - src