diff --git a/graphql-demo/yarn.lock b/graphql-demo/yarn.lock
old mode 100755
new mode 100644
index bd7801f..33f55c3
--- a/graphql-demo/yarn.lock
+++ b/graphql-demo/yarn.lock
@@ -2891,10 +2891,14 @@ core-js@^3.4.1:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-3.5.0.tgz#66df8e49be4bd775e6f952a9d083b756ad41c1ed"
 
-core-util-is@1.0.2, core-util-is@~1.0.0:
+core-util-is@1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
 
+core-util-is@~1.0.0:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.3.tgz#a6042d3634c2b27e9328f837b965fac83808db85"
+
 cosmiconfig@^5.0.0, cosmiconfig@^5.2.1:
   version "5.2.1"
   resolved "https://registry.yarnpkg.com/cosmiconfig/-/cosmiconfig-5.2.1.tgz#040f726809c591e77a17c0a3626ca45b4f168b1a"
@@ -5835,13 +5839,13 @@ jsx-ast-utils@^2.2.1:
     object.assign "^4.1.0"
 
 jszip@^3.1.5:
-  version "3.2.2"
-  resolved "https://registry.yarnpkg.com/jszip/-/jszip-3.2.2.tgz#b143816df7e106a9597a94c77493385adca5bd1d"
+  version "3.10.1"
+  resolved "https://registry.yarnpkg.com/jszip/-/jszip-3.10.1.tgz#34aee70eb18ea1faec2f589208a157d1feb091c2"
   dependencies:
     lie "~3.3.0"
     pako "~1.0.2"
     readable-stream "~2.3.6"
-    set-immediate-shim "~1.0.1"
+    setimmediate "^1.0.5"
 
 killable@^1.0.1:
   version "1.0.1"
@@ -7094,8 +7098,8 @@ p-try@^2.0.0:
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-2.2.0.tgz#cb2868540e313d61de58fafbe35ce9004d5540e6"
 
 pako@~1.0.2, pako@~1.0.5:
-  version "1.0.10"
-  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.10.tgz#4328badb5086a426aa90f541977d4955da5c9732"
+  version "1.0.11"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.11.tgz#6c9599d340d54dfd3946380252a35705a6b992bf"
 
 parallel-transform@^1.1.0:
   version "1.2.0"
@@ -8330,8 +8334,8 @@ read-pkg@^3.0.0:
     path-type "^3.0.0"
 
 "readable-stream@1 || 2", readable-stream@^2.0.0, readable-stream@^2.0.1, readable-stream@^2.0.2, readable-stream@^2.0.6, readable-stream@^2.1.5, readable-stream@^2.2.2, readable-stream@^2.3.3, readable-stream@^2.3.6, readable-stream@~2.3.6:
-  version "2.3.6"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.6.tgz#b11c27d88b8ff1fbe070643cf94b0c79ae1b0aaf"
+  version "2.3.7"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.3.7.tgz#1eca1cf711aef814c04f62252a36a62f6cb23b57"
   dependencies:
     core-util-is "~1.0.0"
     inherits "~2.0.3"
@@ -8856,10 +8860,6 @@ set-blocking@^2.0.0, set-blocking@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/set-blocking/-/set-blocking-2.0.0.tgz#045f9782d011ae9a6803ddd382b24392b3d890f7"
 
-set-immediate-shim@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/set-immediate-shim/-/set-immediate-shim-1.0.1.tgz#4b2b1b27eb808a9f8dcc481a58e5e56f599f3f61"
-
 set-value@^2.0.0, set-value@^2.0.1:
   version "2.0.1"
   resolved "https://registry.yarnpkg.com/set-value/-/set-value-2.0.1.tgz#a18d40530e6f07de4228c7defe4227af8cad005b"
@@ -8869,7 +8869,7 @@ set-value@^2.0.0, set-value@^2.0.1:
     is-plain-object "^2.0.3"
     split-string "^3.0.1"
 
-setimmediate@^1.0.4:
+setimmediate@^1.0.4, setimmediate@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/setimmediate/-/setimmediate-1.0.5.tgz#290cbb232e306942d7d7ea9b83732ab7856f8285"