diff --git a/index.js b/index.js
index 8af68dd..0615aef 100644
--- a/index.js
+++ b/index.js
@@ -51,7 +51,7 @@ function paginate(query, options, callback) {
     }
     promises = {
       docs: docsQuery.exec(),
-      count: this.count(query).exec()
+      count: this.countDocuments(query)
     };
     if (lean && leanWithId) {
       promises.docs = promises.docs.then((docs) => {
diff --git a/package-lock.json b/package-lock.json
new file mode 100644
index 0000000..58770df
--- /dev/null
+++ b/package-lock.json
@@ -0,0 +1,386 @@
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diff --git a/package.json b/package.json
index 1a4b394..2aa4a10 100644
--- a/package.json
+++ b/package.json
@@ -37,7 +37,7 @@
   },
   "dependencies": {},
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-    "mongoose": "4.3.4",
+    "mongoose": "5.4.18",
     "mocha": "2.3.4",
     "chai": "3.4.1"
   },