diff --git a/serverless/nodejs-koa/yarn.lock b/serverless/nodejs-koa/yarn.lock
index 31a4102..6bef1a0 100644
--- a/serverless/nodejs-koa/yarn.lock
+++ b/serverless/nodejs-koa/yarn.lock
@@ -259,8 +259,8 @@ type-is@^1.6.16:
     mime-types "~2.1.24"
 
 urijs@^1.19.0:
-  version "1.19.1"
-  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.1.tgz#5b0ff530c0cbde8386f6342235ba5ca6e995d25a"
+  version "1.19.9"
+  resolved "https://registry.yarnpkg.com/urijs/-/urijs-1.19.9.tgz#3b15844835de3732866d420768c16f24be7d3e65"
 
 vary@^1.1.2:
   version "1.1.2"