diff --git a/packages/mongo/src/index.js b/packages/mongo/src/index.js
index e0d6aef..c54a44a 100644
--- a/packages/mongo/src/index.js
+++ b/packages/mongo/src/index.js
@@ -30,8 +30,7 @@ class KeyvMongo extends EventEmitter {
     this.options.mongoOptions = Object.assign(
       {
         useNewUrlParser: true,
-        useUnifiedTopology: true,
-        tls: true
+        useUnifiedTopology: true
       },
       this.options.mongoOptions
     )
diff --git a/packages/mongo/test/index.js b/packages/mongo/test/index.js
index ca64c01..6cf247a 100644
--- a/packages/mongo/test/index.js
+++ b/packages/mongo/test/index.js
@@ -16,8 +16,7 @@ test('Collection option merges into default options', t => {
     url: 'mongodb://127.0.0.1:27017',
     mongoOptions: {
       useNewUrlParser: true,
-      useUnifiedTopology: true,
-      tls: true
+      useUnifiedTopology: true
     },
     collection: 'foo',
     emitErrors: true
@@ -30,8 +29,7 @@ test('Collection option merges into default options if URL is passed', t => {
     url: mongoURL,
     mongoOptions: {
       useNewUrlParser: true,
-      useUnifiedTopology: true,
-      tls: true
+      useUnifiedTopology: true
     },
     collection: 'foo',
     emitErrors: true