diff --git a/lib/handler/index.js b/lib/handler/index.js
index 9ac1b2a..57c74a5 100644
--- a/lib/handler/index.js
+++ b/lib/handler/index.js
@@ -118,9 +118,7 @@ async function createAttachment(
   const response = await updateServerRequest(
     documentCreateURL,
     formData,
-    config,
-    attachments,
-    data.ID
+    config
   );
   return response;
 }
diff --git a/lib/sdm.js b/lib/sdm.js
index 6b0ced7..91cb396 100644
--- a/lib/sdm.js
+++ b/lib/sdm.js
@@ -277,6 +277,5 @@ module.exports = class SDMAttachmentsService extends (
       entity,
       this.deleteAttachmentsWithKeys.bind(this)
     );
-    return;
   }
 };
diff --git a/lib/util/index.js b/lib/util/index.js
index 76fa235..bfc521b 100644
--- a/lib/util/index.js
+++ b/lib/util/index.js
@@ -41,8 +41,8 @@ async function generateSDMBearerToken(credentials, jwt) {
   });
 }
 function isTokenExpired(exp) {
-  var expiry = new Date(exp * 1000);
-  var now = new Date();
+  const expiry = new Date(exp * 1000);
+  const now = new Date();
   return now > expiry;
 }
 function decodeAccessToken(jwtEncoded) {