diff --git a/yarn.lock b/yarn.lock
index b2ca9f6..1df4ce5 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -5198,6 +5198,11 @@ espree@^6.1.2:
     acorn-jsx "^5.1.0"
     eslint-visitor-keys "^1.1.0"
 
+esprima@^2.6.0:
+  version "2.7.3"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-2.7.3.tgz#96e3b70d5779f6ad49cd032673d1c312767ba581"
+  integrity sha512-OarPfz0lFCiW4/AV2Oy1Rp9qu0iusTKqykwTspGCZtPxmF81JR4MmIebvF1F9+UOKth2ZubLQ4XGGaU+hSn99A==
+
 esprima@^3.1.3:
   version "3.1.3"
   resolved "https://registry.npmjs.org/esprima/-/esprima-3.1.3.tgz#fdca51cee6133895e3c88d535ce49dbff62a4633"
@@ -5253,9 +5258,9 @@ events@^3.0.0:
   integrity sha512-Dc381HFWJzEOhQ+d8pkNon++bk9h6cdAoAj4iE6Q4y6xgTzySWXlKn05/TVNpjnfRqi/X0EpJEJohPjNI3zpVA==
 
 eventsource@^1.0.7:
-  version "1.0.7"
-  resolved "https://registry.npmjs.org/eventsource/-/eventsource-1.0.7.tgz#8fbc72c93fcd34088090bc0a4e64f4b5cee6d8d0"
-  integrity sha512-4Ln17+vVT0k8aWq+t/bF5arcS3EpT9gYtW66EPacdj/mAFevznsnyoHLPy2BA8gbIQeIHoPsvwmfBftfcG//BQ==
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/eventsource/-/eventsource-1.1.1.tgz#4544a35a57d7120fba4fa4c86cb4023b2c09df2f"
+  integrity sha512-qV5ZC0h7jYIAOhArFJgSfdyz6rALJyb270714o7ZtNnw2WSJ+eexhKtE0O8LYPRsHZHf2osHKZBxGPvm3kPkCA==
   dependencies:
     original "^1.0.0"
 
@@ -7559,7 +7564,7 @@ js-tokens@^3.0.2:
   resolved "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
   integrity sha1-mGbfOVECEw449/mWvOtlRDIJwls=
 
-js-yaml@3.13.1, js-yaml@^3.13.1, js-yaml@~3.7.0:
+js-yaml@^3.13.1:
   version "3.13.1"
   resolved "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
   integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
@@ -7567,6 +7572,14 @@ js-yaml@3.13.1, js-yaml@^3.13.1, js-yaml@~3.7.0:
     argparse "^1.0.7"
     esprima "^4.0.0"
 
+js-yaml@~3.7.0:
+  version "3.7.0"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.7.0.tgz#5c967ddd837a9bfdca5f2de84253abe8a1c03b80"
+  integrity sha512-eIlkGty7HGmntbV6P/ZlAsoncFLGsNoM27lkTzS+oneY/EiNhj+geqD9ezg/ip+SW6Var0BJU2JtV0vEUZpWVQ==
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^2.6.0"
+
 jsbn@~0.1.0:
   version "0.1.1"
   resolved "https://registry.npmjs.org/jsbn/-/jsbn-0.1.1.tgz#a5e654c2e5a2deb5f201d96cefbca80c0ef2f513"
@@ -9110,7 +9123,7 @@ optionator@^0.8.1, optionator@^0.8.3:
 
 original@^1.0.0:
   version "1.0.2"
-  resolved "https://registry.npmjs.org/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
+  resolved "https://registry.yarnpkg.com/original/-/original-1.0.2.tgz#e442a61cffe1c5fd20a65f3261c26663b303f25f"
   integrity sha512-hyBVl6iqqUOJ8FqRe+l/gS8H+kKYjrEndd5Pm1MfBtsEKA038HkkdbAl/72EAXGyonD/PFsvmVG+EvcIpliMBg==
   dependencies:
     url-parse "^1.4.3"
@@ -10132,9 +10145,9 @@ querystring@0.2.0:
   integrity sha1-sgmEkgO7Jd+CDadW50cAWHhSFiA=
 
 querystringify@^2.1.1:
-  version "2.1.1"
-  resolved "https://registry.npmjs.org/querystringify/-/querystringify-2.1.1.tgz#60e5a5fd64a7f8bfa4d2ab2ed6fdf4c85bad154e"
-  integrity sha512-w7fLxIRCRT7U8Qu53jQnJyPkYZIaR4n5151KMfcJlO/A9397Wxb1amJvROTK6TOnp7PfoAmg/qXiNHI+08jRfA==
+  version "2.2.0"
+  resolved "https://registry.yarnpkg.com/querystringify/-/querystringify-2.2.0.tgz#3345941b4153cb9d082d8eee4cda2016a9aef7f6"
+  integrity sha512-FIqgj2EUvTa7R50u0rGsyTftzjYmv/a3hO345bZNrqabNqjtgiDMgmo4mkUjd+nzU5oF3dClKqFIPUKybUyqoQ==
 
 quick-lru@^1.0.0:
   version "1.1.0"
@@ -10696,7 +10709,7 @@ require-main-filename@^2.0.0:
 
 requires-port@^1.0.0:
   version "1.0.0"
-  resolved "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
+  resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
   integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
 
 resolve-cwd@^2.0.0:
@@ -12402,9 +12415,9 @@ url-parse-lax@^3.0.0:
     prepend-http "^2.0.0"
 
 url-parse@^1.4.3:
-  version "1.4.7"
-  resolved "https://registry.npmjs.org/url-parse/-/url-parse-1.4.7.tgz#a8a83535e8c00a316e403a5db4ac1b9b853ae278"
-  integrity sha512-d3uaVyzDB9tQoSXFvuSUNFibTd9zxd2bkVrDRvF5TmvWWQwqE4lgYJ5m+x1DbecWkw+LK4RNl2CU1hHuOKPVlg==
+  version "1.5.10"
+  resolved "https://registry.yarnpkg.com/url-parse/-/url-parse-1.5.10.tgz#9d3c2f736c1d75dd3bd2be507dcc111f1e2ea9c1"
+  integrity sha512-WypcfiRhfeUP9vvF0j6rw0J3hrWrw6iZv3+22h6iRMJ/8z1Tj6XfLP4DsUix5MhMPnXpiHDoKyoZ/bdCkwBCiQ==
   dependencies:
     querystringify "^2.1.1"
     requires-port "^1.0.0"