diff --git a/packages/mongo/mongo_driver.js b/packages/mongo/mongo_driver.js
index 69d9b86f7b..e47d5b5ecd 100644
--- a/packages/mongo/mongo_driver.js
+++ b/packages/mongo/mongo_driver.js
@@ -1099,7 +1099,7 @@ class AsynchronousCursor {
       if (!doc) return null;
       doc = replaceTypes(doc, replaceMongoAtomWithMeteor);
 
-      if (!this._cursorDescription.options.tailable && _.has(doc, '_id')) {
+      if (!this._cursorDescription.options.tailable && doc._id) {
         // Did Mongo give us duplicate documents in the same cursor? If so,
         // ignore this one. (Do this before the transform, since transform might
         // return some unrelated value.) We don't do this for tailable cursors,
@@ -1174,7 +1174,8 @@ class AsynchronousCursor {
   }
 
   fetch() {
-    return this.map(_.identity);
+    var self = this;
+    return self.map(x => x);
   }
 
   /**
@@ -1634,9 +1635,9 @@ forEachTrigger = async function (cursorDescription, triggerCallback) {
     cursorDescription.selector);
   if (specificIds) {
     for (const id of specificIds) {
-      await triggerCallback(_.extend({id: id}, key));
+      await triggerCallback(Object.assign({id: id}, key));
     }
-    await triggerCallback(_.extend({dropCollection: true, id: null}, key));
+    await triggerCallback(Object.assign({dropCollection: true, id: null}, key));
   } else {
     await triggerCallback(key);
   }
diff --git a/packages/mongo/observe_multiplex.js b/packages/mongo/observe_multiplex.js
index 35c150bf9c..80fb8b4145 100644
--- a/packages/mongo/observe_multiplex.js
+++ b/packages/mongo/observe_multiplex.js
@@ -26,7 +26,7 @@ ObserveMultiplexer = class {
     const self = this;
     this.callbackNames().forEach(callbackName => {
       this[callbackName] = function(/* ... */) {
-        self._applyCallback(callbackName, _.toArray(arguments));
+        self._applyCallback(callbackName, [...arguments]);
       };
     });
   }
diff --git a/packages/mongo/oplog_observe_driver.js b/packages/mongo/oplog_observe_driver.js
index 3e13047ba3..bbe634273b 100644
--- a/packages/mongo/oplog_observe_driver.js
+++ b/packages/mongo/oplog_observe_driver.js
@@ -118,7 +118,7 @@ OplogObserveDriver = function (options) {
 
  };
 
-_.extend(OplogObserveDriver.prototype, {
+Object.assign(OplogObserveDriver.prototype, {
   _init: async function() {
     const self = this;
 
diff --git a/packages/mongo/polling_observe_driver.js b/packages/mongo/polling_observe_driver.js
index 6b4172cd95..426d5ed3d3 100644
--- a/packages/mongo/polling_observe_driver.js
+++ b/packages/mongo/polling_observe_driver.js
@@ -43,7 +43,7 @@ PollingObserveDriver = function (options) {
   
 };
 
-_.extend(PollingObserveDriver.prototype, {
+Object.assign(PollingObserveDriver.prototype, {
   _init: async function () {
     const self = this;
     const options = self._options;
diff --git a/packages/mongo/remote_collection_driver.js b/packages/mongo/remote_collection_driver.js
index d8c794abff..e239424e45 100644
--- a/packages/mongo/remote_collection_driver.js
+++ b/packages/mongo/remote_collection_driver.js
@@ -47,11 +47,9 @@ Object.assign(MongoInternals.RemoteCollectionDriver.prototype, {
     });
 
     CLIENT_ONLY_METHODS.forEach(function (m) {
-      ret[m] = _.bind(self.mongo[m], self.mongo, name);
-
       ret[m] = function (...args) {
         throw new Error(
-          `${m} +  is not available on the server. Please use ${getAsyncMethodName(
+          `${m} is not available on the server. Please use ${getAsyncMethodName(
             m
           )}() instead.`
         );
@@ -88,4 +86,4 @@ MongoInternals.defaultRemoteCollectionDriver = once(function () {
   });
 
   return driver;
-});
\ No newline at end of file
+});