diff --git a/yarn.lock b/yarn.lock
index c006a72..8cea6c9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -349,8 +349,10 @@ function-bind@^1.0.2:
   resolved "https://registry.yarnpkg.com/function-bind/-/function-bind-1.1.0.tgz#16176714c801798e4e8f2cf7f7529467bb4a5771"
 
 generate-function@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.0.0.tgz#6858fe7c0969b7d4e9093337647ac79f60dfbe74"
+  version "2.3.1"
+  resolved "https://registry.yarnpkg.com/generate-function/-/generate-function-2.3.1.tgz#f069617690c10c868e73b8465746764f97c3479f"
+  dependencies:
+    is-property "^1.0.2"
 
 generate-object-property@^1.1.0:
   version "1.2.0"
@@ -452,13 +454,18 @@ is-fullwidth-code-point@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
 
+is-my-ip-valid@^1.0.0:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/is-my-ip-valid/-/is-my-ip-valid-1.0.1.tgz#f7220d1146257c98672e6fba097a9f3f2d348442"
+
 is-my-json-valid@^2.16.0:
-  version "2.16.0"
-  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.16.0.tgz#f079dd9bfdae65ee2038aae8acbc86ab109e3693"
+  version "2.20.6"
+  resolved "https://registry.yarnpkg.com/is-my-json-valid/-/is-my-json-valid-2.20.6.tgz#a9d89e56a36493c77bda1440d69ae0dc46a08387"
   dependencies:
     generate-function "^2.0.0"
     generate-object-property "^1.1.0"
-    jsonpointer "^4.0.0"
+    is-my-ip-valid "^1.0.0"
+    jsonpointer "^5.0.0"
     xtend "^4.0.0"
 
 is-path-cwd@^1.0.0:
@@ -481,7 +488,7 @@ is-promise@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
 
-is-property@^1.0.0:
+is-property@^1.0.0, is-property@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/is-property/-/is-property-1.0.2.tgz#57fe1c4e48474edd65b09911f26b1cd4095dda84"
 
@@ -520,9 +527,9 @@ jsonify@~0.0.0:
   version "0.0.0"
   resolved "https://registry.yarnpkg.com/jsonify/-/jsonify-0.0.0.tgz#2c74b6ee41d93ca51b7b5aaee8f503631d252a73"
 
-jsonpointer@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-4.0.1.tgz#4fd92cb34e0e9db3c89c8622ecf51f9b978c6cb9"
+jsonpointer@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/jsonpointer/-/jsonpointer-5.0.0.tgz#f802669a524ec4805fa7389eadbc9921d5dc8072"
 
 jsx-ast-utils@^1.4.1:
   version "1.4.1"
@@ -807,5 +814,5 @@ write@^0.2.1:
     mkdirp "^0.5.1"
 
 xtend@^4.0.0:
-  version "4.0.1"
-  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.1.tgz#a5c6d532be656e23db820efb943a1f04998d63af"
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/xtend/-/xtend-4.0.2.tgz#bb72779f5fa465186b1f438f674fa347fdb5db54"