diff --git a/yarn.lock b/yarn.lock
old mode 100755
new mode 100644
index b26af1b..34f37b0
--- a/yarn.lock
+++ b/yarn.lock
@@ -3219,9 +3219,9 @@ acorn-walk@^6.0.1, acorn-walk@^6.1.1:
   integrity sha512-7evsyfH1cLOCdAzZAd43Cic04yKydNx0cF+7tiA19p1XnLLPU4dpCQOqpjqwokFe//vS0QqfqqjCS2JkiIs0cA==
 
 acorn@^5.0.0, acorn@^5.0.3, acorn@^5.5.3, acorn@^5.6.2:
-  version "5.7.3"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.3.tgz#67aa231bf8812974b85235a96771eb6bd07ea279"
-  integrity sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==
+  version "5.7.4"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.4.tgz#3e8d8a9947d0599a1796d10225d7432f4a4acf5e"
+  integrity sha512-1D++VG7BhrtvQpNbBzovKNc1FLGGEE/oGe7b9xJm/RFHMBeUaUGpluV9RLjZa47YFdPcDAenEYuq9pQPcMdLJg==
 
 acorn@^6.0.1, acorn@^6.0.7, acorn@^6.2.1:
   version "6.4.0"
@@ -13826,22 +13826,6 @@ node-object-hash@^2.0.0:
   resolved "https://registry.yarnpkg.com/node-object-hash/-/node-object-hash-2.0.0.tgz#9971fcdb7d254f05016bd9ccf508352bee11116b"
   integrity sha512-VZR0zroAusy1ETZMZiGeLkdu50LGjG5U1KHZqTruqtTyQ2wfWhHG2Ow4nsUbfTFGlaREgNHcCWoM/OzEm6p+NQ==
 
-node-pre-gyp@*:
-  version "0.14.0"
-  resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.14.0.tgz#9a0596533b877289bcad4e143982ca3d904ddc83"
-  integrity sha512-+CvDC7ZttU/sSt9rFjix/P05iS43qHCOOGzcr3Ry99bXG7VX953+vFyEuph/tfqoYu8dttBkE86JSKBO2OzcxA==
-  dependencies:
-    detect-libc "^1.0.2"
-    mkdirp "^0.5.1"
-    needle "^2.2.1"
-    nopt "^4.0.1"
-    npm-packlist "^1.1.6"
-    npmlog "^4.0.2"
-    rc "^1.2.7"
-    rimraf "^2.6.1"
-    semver "^5.3.0"
-    tar "^4.4.2"
-
 node-pre-gyp@^0.10.0:
   version "0.10.3"
   resolved "https://registry.yarnpkg.com/node-pre-gyp/-/node-pre-gyp-0.10.3.tgz#3070040716afdc778747b61b6887bf78880b80fc"
@@ -19119,7 +19103,7 @@ tar-stream@^2.0.0:
     inherits "^2.0.3"
     readable-stream "^3.1.1"
 
-tar@^4, tar@^4.4.10, tar@^4.4.12, tar@^4.4.2, tar@^4.4.8:
+tar@^4, tar@^4.4.10, tar@^4.4.12, tar@^4.4.8:
   version "4.4.13"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.13.tgz#43b364bc52888d555298637b10d60790254ab525"
   integrity sha512-w2VwSrBoHa5BsSyH+KxEqeQBAllHhccyMFVHtGtdMpF4W7IRWfZjFiQceJPChOeTsSDVUpER2T8FA93pr0L+QA==