diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..a38c7a8
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,5 @@
+{
+    "scripts": {
+        "phpstan": "phpstan analyze -c phpstan.dev.neon"
+    }
+}
diff --git a/phpstan.dev.neon b/phpstan.dev.neon
new file mode 100644
index 0000000..9362138
--- /dev/null
+++ b/phpstan.dev.neon
@@ -0,0 +1,8 @@
+parameters:
+    level: 5
+    paths:
+      - lib/
+      - pages/
+
+    ignoreErrors:
+      - '#.*getValueType\(\) expects class\-string, string given\.$#'