diff --git a/package.json b/package.json
index 7da603a..d963789 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
     "koa-qs": "^3.0.0",
     "koa-router": "^10.0.0",
     "koa-session": "^6.2.0",
-    "locutus": "^2.0.11",
+    "locutus": "^2.0.15",
     "lodash": "^4.17.4",
     "moment": "^2.19.1",
     "mongoose": "^6.0.12",
diff --git a/yarn.lock b/yarn.lock
index f5ecc43..ef3348d 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -922,11 +922,6 @@ error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
-es6-promise@^4.2.5:
-  version "4.2.8"
-  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.8.tgz#4eb21594c972bc40553d276e510539143db53e0a"
-  integrity sha512-HJDGx5daxeIvxdBxvG2cb9g4tEvwIk3i8+nhX0yGrYmZUzbkdg8QbDevheDB8gd0//uPj4c1EQua8Q+MViT0/w==
-
 escape-html@^1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
@@ -1660,12 +1655,10 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-locutus@^2.0.11:
-  version "2.0.14"
-  resolved "https://registry.yarnpkg.com/locutus/-/locutus-2.0.14.tgz#53d259ac7200b0621ed4e5604b6c49993415a455"
-  integrity sha512-0H1o1iHNEp3kJ5rW57bT/CAP5g6Qm0Zd817Wcx2+rOMTYyIJoc482Ja1v9dB6IUjwvWKcBNdYi7x2lRXtlJ3bA==
-  dependencies:
-    es6-promise "^4.2.5"
+locutus@^2.0.15:
+  version "2.0.15"
+  resolved "https://registry.yarnpkg.com/locutus/-/locutus-2.0.15.tgz#d75b9100713aaaf30be8b38ed6543910498c0db0"
+  integrity sha512-2xWC4RkoAoCVXEb/stzEgG1TNgd+mrkLBj6TuEDNyUoKeQ2XzDTyJUC23sMiqbL6zJmJSP3w59OZo+zc4IBOmA==
 
 lodash.assign@^4.2.0:
   version "4.2.0"