diff --git a/.gitignore b/.gitignore
index dc6b0009..16f41e6c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ dist
 .idea
 .nyc_output/
 .dccache
+/yarn.lock
\ No newline at end of file
diff --git a/lib/index.ts b/lib/index.ts
index d8ea4084..955aa087 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -33,6 +33,8 @@ export {
   InvalidUserInputError,
   OutOfSyncError,
   ManifestFile,
+  Yarn2LockParser,
+  YarnLockParser
 };
 
 async function buildDepTree(
diff --git a/package.json b/package.json
index 33a116ab..08f49067 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,8 @@
     "semver": "^7.3.5",
     "snyk-config": "^4.0.0-rc.2",
     "tslib": "^1.9.3",
-    "uuid": "^8.3.0"
+    "uuid": "^8.3.0",
+    "debug": "^4.3.1"
   },
   "devDependencies": {
     "@types/jest": "^26.0.23",