diff --git a/package-lock.json b/package-lock.json
index 5dba691..b4ebbb3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1732,9 +1732,12 @@
       "dev": true
     },
     "content-disposition": {
-      "version": "0.5.2",
-      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.2.tgz",
-      "integrity": "sha1-DPaLud318r55YcOoUXjLhdunjLQ="
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
+      "integrity": "sha512-ExO0774ikEObIAEV9kDo50o+79VCUdEB6n6lzKgGwupcVeRlhrj3qGAfwq8G6uBJjkqLrhT0qEYFcWng8z1z0g==",
+      "requires": {
+        "safe-buffer": "5.1.2"
+      }
     },
     "content-type": {
       "version": "1.0.4",
@@ -5763,9 +5766,9 @@
       }
     },
     "koa": {
-      "version": "2.6.2",
-      "resolved": "https://registry.npmjs.org/koa/-/koa-2.6.2.tgz",
-      "integrity": "sha512-KdnBFhTgh9ysMMoYe4J4fLvaKjT7mF3nRYV8MjxLzx6qywFNeptqi4xevyUltg1fZl2CFJ+HeLXuCGx07Yvl/A==",
+      "version": "2.7.0",
+      "resolved": "https://registry.npmjs.org/koa/-/koa-2.7.0.tgz",
+      "integrity": "sha512-7ojD05s2Q+hFudF8tDLZ1CpCdVZw8JQELWSkcfG9bdtoTDzMmkRF6BQBU7JzIzCCOY3xd3tftiy/loHBUYaY2Q==",
       "requires": {
         "accepts": "^1.3.5",
         "cache-content-type": "^1.0.0",
diff --git a/package.json b/package.json
index 6936cbe..6f599a7 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "browserify": "^16.2.3",
     "dog-names": "^1.0.2",
     "ioredis": "^4.6.2",
-    "koa": "^2.6.2",
+    "koa": "^2.7.0",
     "koa-router": "^7.4.0",
     "koa-static": "^5.0.0",
     "mz": "^2.7.0",