diff --git a/simple_api/package.json b/simple_api/package.json
old mode 100755
new mode 100644
index e264fe2..b721bcd
--- a/simple_api/package.json
+++ b/simple_api/package.json
@@ -6,7 +6,7 @@
     "body-parser": "^1.14.1",
     "core-js": "^0.9.6",
     "object-assign": "4.0.1",
-    "qs": "^5.2.0",
+    "qs": "^6.2.4",
     "express": "^4.13.3"
   },
   "scripts": {
diff --git a/simple_api/yarn.lock b/simple_api/yarn.lock
index 84aa15f..b1eb8a7 100644
--- a/simple_api/yarn.lock
+++ b/simple_api/yarn.lock
@@ -285,10 +285,10 @@ qs@6.7.0:
   resolved "https://registry.yarnpkg.com/qs/-/qs-6.7.0.tgz#41dc1a015e3d581f1621776be31afb2876a9b1bc"
   integrity sha512-VCdBRNFTX1fyE7Nb6FYoURo/SPe62QCaAyzJvUjwRaIsc+NePBEniHlvxFmmX56+HZphIGtV0XeCirBtpDrTyQ==
 
-qs@^5.2.0:
-  version "5.2.1"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-5.2.1.tgz#801fee030e0b9450d6385adc48a4cc55b44aedfc"
-  integrity sha1-gB/uAw4LlFDWOFrcSKTMVbRK7fw=
+qs@^6.2.4:
+  version "6.2.4"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.2.4.tgz#d90821bb8537cecc140e6c34f54ec76e54b39b22"
+  integrity sha512-E57gmgKXqDda+qWTkUJgIwgJICK7zgMfqZZopTRKZ6mY9gzLlmJN9EpXNnDrTxXFlOM/a+I28kJkF/60rqgnYw==
 
 range-parser@~1.2.1:
   version "1.2.1"