diff --git a/package.json b/package.json
index 9a645ef..e20eef5 100644
--- a/package.json
+++ b/package.json
@@ -40,9 +40,9 @@
   },
   "dependencies": {
     "@stoplight/ordered-object-literal": "^1.0.1",
-    "@stoplight/types": "^11.1.1",
+    "@stoplight/types": "^11.6.0",
     "@stoplight/yaml-ast-parser": "0.0.46",
-    "lodash": "^4.17.15"
+    "tslib": "^1.12.0"
   },
   "devDependencies": {
     "@stoplight/scripts": "3.1.0",
diff --git a/yarn.lock b/yarn.lock
index 13b481d..b1ac9d2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1580,12 +1580,13 @@
     typedoc "0.13.x"
     typescript-plugin-styled-components "1.0.x"
 
-"@stoplight/types@^11.1.1":
-  version "11.1.1"
-  resolved "https://registry.yarnpkg.com/@stoplight/types/-/types-11.1.1.tgz#a92d1833adb580a72439f42ba73de8f560fd68b4"
-  integrity sha512-IU8U9y/uO548z15DX/Jl053u9VQG8gCwNtypuD4RtskUA7pvHZl4+zzGK3klgIcO6Ql3Jk4/fcrFaN9vjmdEWg==
+"@stoplight/types@^11.6.0":
+  version "11.6.0"
+  resolved "https://registry.yarnpkg.com/@stoplight/types/-/types-11.6.0.tgz#c4507f564ea4be719f66ae2fd2bb83f4719c2210"
+  integrity sha512-J2wOl6FlN4IeY99MZTbgLVbIqrE9eVcHIvWmSEFzxfnbHCh4reXcGkvxlQ7I/pTKScd5/F/HJKSYnNXRjCnM2A==
   dependencies:
-    "@types/json-schema" "^7.0.3"
+    "@types/json-schema" "^7.0.4"
+    utility-types "^3.10.0"
 
 "@stoplight/yaml-ast-parser@0.0.46":
   version "0.0.46"
@@ -1987,10 +1988,10 @@
   resolved "https://registry.yarnpkg.com/@types/jest/-/jest-23.3.10.tgz#4897974cc317bf99d4fe6af1efa15957fa9c94de"
   integrity sha512-DC8xTuW/6TYgvEg3HEXS7cu9OijFqprVDXXiOcdOKZCU/5PJNLZU37VVvmZHdtMiGOa8wAA/We+JzbdxFzQTRQ==
 
-"@types/json-schema@^7.0.3":
-  version "7.0.3"
-  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.3.tgz#bdfd69d61e464dcc81b25159c270d75a73c1a636"
-  integrity sha512-Il2DtDVRGDcqjDtE+rF8iqg1CArehSK84HZJCT7AMITlyXRBpuPhqGLDQMowraqqu1coEaimg4ZOqggt6L6L+A==
+"@types/json-schema@^7.0.4":
+  version "7.0.4"
+  resolved "https://registry.yarnpkg.com/@types/json-schema/-/json-schema-7.0.4.tgz#38fd73ddfd9b55abb1e1b2ed578cb55bd7b7d339"
+  integrity sha512-8+KAKzEvSUdeo+kmqnKrqgeE+LcA0tjYWFY7RPProVYwnqDjukzO+3b6dLD56rYX5TdWejnEOLJYOIeh4CXKuA==
 
 "@types/lodash@^4.14.110":
   version "4.14.136"
@@ -8517,11 +8518,6 @@ lodash@4.17.11, lodash@4.x.x, lodash@^4.0.1, lodash@^4.15.0, lodash@^4.17.10, lo
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
   integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
 
-lodash@^4.17.15:
-  version "4.17.15"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
-  integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
-
 log-symbols@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/log-symbols/-/log-symbols-1.0.2.tgz#376ff7b58ea3086a0f09facc74617eca501e1a18"
@@ -12641,10 +12637,10 @@ tslib@1.9.3:
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.3.tgz#d7e4dd79245d85428c4d7e4822a79917954ca286"
   integrity sha512-4krF8scpejhaOgqzBEcGM7yDIEfi0/8+8zDRZhNZZ2kjmHJ4hv3zCbQWxoJGz1iw5U0Jl0nma13xzHXcncMavQ==
 
-tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
-  version "1.10.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.10.0.tgz#c3c19f95973fb0a62973fb09d90d961ee43e5c8a"
-  integrity sha512-qOebF53frne81cf0S9B41ByenJ3/IuH8yJKngAX35CmiZySA0khhkovshKK+jGCaMnVomla7gVlIcc3EvKPbTQ==
+tslib@^1.12.0, tslib@^1.7.1, tslib@^1.8.0, tslib@^1.8.1, tslib@^1.9.0, tslib@^1.9.3:
+  version "1.12.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.12.0.tgz#d1fc9cacd06a1456c62f2902b361573e83d66473"
+  integrity sha512-5rxCQkP0kytf4H1T4xz1imjxaUUPMvc5aWp0rJ/VMIN7ClRiH1FwFvBt8wOeMasp/epeUnmSW6CixSIePtiLqA==
 
 tslint-config-prettier@1.15.x:
   version "1.15.0"
@@ -13044,6 +13040,11 @@ utila@^0.4.0, utila@~0.4:
   resolved "https://registry.yarnpkg.com/utila/-/utila-0.4.0.tgz#8a16a05d445657a3aea5eecc5b12a4fa5379772c"
   integrity sha1-ihagXURWV6Oupe7MWxKk+lN5dyw=
 
+utility-types@^3.10.0:
+  version "3.10.0"
+  resolved "https://registry.yarnpkg.com/utility-types/-/utility-types-3.10.0.tgz#ea4148f9a741015f05ed74fd615e1d20e6bed82b"
+  integrity sha512-O11mqxmi7wMKCo6HKFt5AhO4BwY3VV68YU07tgxfz8zJTIxr4BpsezN49Ffwy9j3ZpwwJp4fkRwjRzq3uWE6Rg==
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"