diff --git a/.gitignore b/.gitignore
index aa51a80..79b1e69 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,3 +5,4 @@
 /node_modules
 /output
 test/README.purs
+package-lock.json
diff --git a/package.json b/package.json
index f7408ac..1c40d47 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,8 @@
     "pg": "^6.1.2"
   },
   "devDependencies": {
-    "paluh-litps": "^0.1.4"
+    "paluh-litps": "^0.1.4",
+    "pulp": "^13.0.0"
   },
   "scripts": {
     "pretest": "paluh-litps compile --file README.md; mv README.purs test/README.purs",