diff --git a/package.json b/package.json
index 3d4864d..88ab4f5 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "ava": "0.25.0",
     "graphql": "0.13.2",
     "graphql-middleware": "1.7.8",
-    "graphql-tools": "4.0.4",
+    "graphql-tools": "8.3.20",
     "prettier": "1.14.3",
     "prettier-check": "2.0.0",
     "semantic-release": "15.8.1",
diff --git a/yarn.lock b/yarn.lock
index ae42ea7..1c0bdc4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,6 +2,25 @@
 # yarn lockfile v1
 
 
+"@apollo/client@~3.2.5 || ~3.3.0 || ~3.4.0 || ~3.5.0 || ~3.6.0 || ~3.7.0":
+  version "3.7.12"
+  resolved "https://registry.yarnpkg.com/@apollo/client/-/client-3.7.12.tgz#9ddd355d0788374cdb900e5f40298b196176952b"
+  integrity sha512-XvH8ssDibx5hR92Tet8CHtUxhiIs+RbYjyxkflAcnF85QT3VacUdNAhjj0OcA2kcZ+5KyceJmilmBNjj6+rJFg==
+  dependencies:
+    "@graphql-typed-document-node/core" "^3.1.1"
+    "@wry/context" "^0.7.0"
+    "@wry/equality" "^0.5.0"
+    "@wry/trie" "^0.3.0"
+    graphql-tag "^2.12.6"
+    hoist-non-react-statics "^3.3.2"
+    optimism "^0.16.2"
+    prop-types "^15.7.2"
+    response-iterator "^0.2.6"
+    symbol-observable "^4.0.0"
+    ts-invariant "^0.10.3"
+    tslib "^2.3.0"
+    zen-observable-ts "^1.2.5"
+
 "@ava/babel-plugin-throws-helper@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@ava/babel-plugin-throws-helper/-/babel-plugin-throws-helper-2.0.0.tgz#2fc1fe3c211a71071a4eca7b8f7af5842cd1ae7c"
@@ -51,6 +70,37 @@
   dependencies:
     arrify "^1.0.1"
 
+"@graphql-tools/merge@^8.4.1":
+  version "8.4.1"
+  resolved "https://registry.yarnpkg.com/@graphql-tools/merge/-/merge-8.4.1.tgz#52879e5f73565f504ceea04fcd9ef90a6e733c62"
+  integrity sha512-hssnPpZ818mxgl5+GfyOOSnnflAxiaTn1A1AojZcIbh4J52sS1Q0gSuBR5VrnUDjuxiqoCotpXdAQl+K+U6KLQ==
+  dependencies:
+    "@graphql-tools/utils" "^9.2.1"
+    tslib "^2.4.0"
+
+"@graphql-tools/schema@^9.0.18":
+  version "9.0.18"
+  resolved "https://registry.yarnpkg.com/@graphql-tools/schema/-/schema-9.0.18.tgz#f66dd5e76e1aba85904cb649fde88ae01718c45c"
+  integrity sha512-Kckb+qoo36o5RSIVfBNU5XR5fOg4adNa1xuhhUgbQejDaI684tIJbTWwYbrDPVEGL/dqJJX3rrsq7RLufjNFoQ==
+  dependencies:
+    "@graphql-tools/merge" "^8.4.1"
+    "@graphql-tools/utils" "^9.2.1"
+    tslib "^2.4.0"
+    value-or-promise "1.0.12"
+
+"@graphql-tools/utils@^9.2.1":
+  version "9.2.1"
+  resolved "https://registry.yarnpkg.com/@graphql-tools/utils/-/utils-9.2.1.tgz#1b3df0ef166cfa3eae706e3518b17d5922721c57"
+  integrity sha512-WUw506Ql6xzmOORlriNrD6Ugx+HjVgYxt9KCXD9mHAak+eaXSwuGGPyE60hy9xaDEoXKBsG7SkG69ybitaVl6A==
+  dependencies:
+    "@graphql-typed-document-node/core" "^3.1.1"
+    tslib "^2.4.0"
+
+"@graphql-typed-document-node/core@^3.1.1":
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/@graphql-typed-document-node/core/-/core-3.2.0.tgz#5f3d96ec6b2354ad6d8a28bf216a1d97b5426861"
+  integrity sha512-mB9oAsNCm9aM3/SOv4YtBMqZbYj10R7dkq8byBqxGY/ncFwhf2oQzMV+LCRlWoDSEBJ3COiR1yeDvMtsoOsuFQ==
+
 "@ladjs/time-require@^0.1.4":
   version "0.1.4"
   resolved "https://registry.yarnpkg.com/@ladjs/time-require/-/time-require-0.1.4.tgz#5c615d75fd647ddd5de9cf6922649558856b21a1"
@@ -158,6 +208,27 @@
   version "0.13.4"
   resolved "https://registry.yarnpkg.com/@types/graphql/-/graphql-0.13.4.tgz#55ae9c29f0fd6b85ee536f5c72b4769d5c5e06b1"
 
+"@wry/context@^0.7.0":
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/@wry/context/-/context-0.7.0.tgz#be88e22c0ddf62aeb0ae9f95c3d90932c619a5c8"
+  integrity sha512-LcDAiYWRtwAoSOArfk7cuYvFXytxfVrdX7yxoUmK7pPITLk5jYh2F8knCwS7LjgYL8u1eidPlKKV6Ikqq0ODqQ==
+  dependencies:
+    tslib "^2.3.0"
+
+"@wry/equality@^0.5.0":
+  version "0.5.3"
+  resolved "https://registry.yarnpkg.com/@wry/equality/-/equality-0.5.3.tgz#fafebc69561aa2d40340da89fa7dc4b1f6fb7831"
+  integrity sha512-avR+UXdSrsF2v8vIqIgmeTY0UR91UT+IyablCyKe/uk22uOJ8fusKZnH9JH9e1/EtLeNJBtagNmL3eJdnOV53g==
+  dependencies:
+    tslib "^2.3.0"
+
+"@wry/trie@^0.3.0":
+  version "0.3.2"
+  resolved "https://registry.yarnpkg.com/@wry/trie/-/trie-0.3.2.tgz#a06f235dc184bd26396ba456711f69f8c35097e6"
+  integrity sha512-yRTyhWSls2OY/pYLfwff867r8ekooZ4UI+/gxot5Wj8EFwSf2rG+n+Mo/6LoLQm1TKA4GRj2+LCpbfS937dClQ==
+  dependencies:
+    tslib "^2.3.0"
+
 JSONStream@^1.0.4:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/JSONStream/-/JSONStream-1.3.3.tgz#27b4b8fbbfeab4e71bcf551e7f27be8d952239bf"
@@ -1846,15 +1917,22 @@ graphql-middleware@1.7.8:
   dependencies:
     graphql-tools "^4.0.2"
 
-graphql-tools@4.0.4:
-  version "4.0.4"
-  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-4.0.4.tgz#ca08a63454221fdde825fe45fbd315eb2a6d566b"
+graphql-tag@^2.12.6:
+  version "2.12.6"
+  resolved "https://registry.yarnpkg.com/graphql-tag/-/graphql-tag-2.12.6.tgz#d441a569c1d2537ef10ca3d1633b48725329b5f1"
+  integrity sha512-FdSNcu2QQcWnM2VNvSCCDCVS5PpPqpzgFT8+GXzqJuoDd0CBncxCY278u4mhRO7tMgo2JjgJA5aZ+nWSQ/Z+xg==
   dependencies:
-    apollo-link "^1.2.3"
-    apollo-utilities "^1.0.1"
-    deprecated-decorator "^0.1.6"
-    iterall "^1.1.3"
-    uuid "^3.1.0"
+    tslib "^2.1.0"
+
+graphql-tools@8.3.20:
+  version "8.3.20"
+  resolved "https://registry.yarnpkg.com/graphql-tools/-/graphql-tools-8.3.20.tgz#d6b7ff46d30bf89b1963418fa481ee3326ac6fff"
+  integrity sha512-x3VkXkaGyPaZu1G0Vr2x/7yxTiuTB6xpY3RbH2uTjBv01Z+985J3//B81fooTtEf2eySBiyPplMYwFmAybOIrQ==
+  dependencies:
+    "@graphql-tools/schema" "^9.0.18"
+    tslib "^2.4.0"
+  optionalDependencies:
+    "@apollo/client" "~3.2.5 || ~3.3.0 || ~3.4.0 || ~3.5.0 || ~3.6.0 || ~3.7.0"
 
 graphql-tools@^4.0.2:
   version "4.0.2"
@@ -1935,6 +2013,13 @@ has-yarn@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/has-yarn/-/has-yarn-1.0.0.tgz#89e25db604b725c8f5976fff0addc921b828a5a7"
 
+hoist-non-react-statics@^3.3.2:
+  version "3.3.2"
+  resolved "https://registry.yarnpkg.com/hoist-non-react-statics/-/hoist-non-react-statics-3.3.2.tgz#ece0acaf71d62c2969c2ec59feff42a4b1a85b45"
+  integrity sha512-/gGivxi8JPKWNm/W0jSmzcMPpfpPLc3dY/6GxhX2hQ9iGj3aDfklV4ET7NjKpSinLpJ5vafa9iiGIEZg10SfBw==
+  dependencies:
+    react-is "^16.7.0"
+
 home-or-tmp@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/home-or-tmp/-/home-or-tmp-2.0.0.tgz#e36c3f2d2cae7d746a857e38d18d5f32a7882db8"
@@ -2378,6 +2463,11 @@ js-tokens@^3.0.0, js-tokens@^3.0.2:
   version "3.0.2"
   resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-3.0.2.tgz#9866df395102130e38f7f996bceb65443209c25b"
 
+"js-tokens@^3.0.0 || ^4.0.0":
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/js-tokens/-/js-tokens-4.0.0.tgz#19203fb59991df98e3a287050d4647cdeaf32499"
+  integrity sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==
+
 js-yaml@^3.10.0, js-yaml@^3.7.0, js-yaml@^3.9.0:
   version "3.12.0"
   resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.12.0.tgz#eaed656ec8344f10f527c6bfa1b6e2244de167d1"
@@ -2569,6 +2659,13 @@ loose-envify@^1.0.0:
   dependencies:
     js-tokens "^3.0.0"
 
+loose-envify@^1.4.0:
+  version "1.4.0"
+  resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
+  integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
+  dependencies:
+    js-tokens "^3.0.0 || ^4.0.0"
+
 loud-rejection@^1.0.0, loud-rejection@^1.2.0:
   version "1.6.0"
   resolved "https://registry.yarnpkg.com/loud-rejection/-/loud-rejection-1.6.0.tgz#5b46f80147edee578870f086d04821cf998e551f"
@@ -2928,7 +3025,7 @@ number-is-nan@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/number-is-nan/-/number-is-nan-1.0.1.tgz#097b602b53422a522c1afb8790318336941a011d"
 
-object-assign@^4.0.1, object-assign@^4.1.0:
+object-assign@^4.0.1, object-assign@^4.1.0, object-assign@^4.1.1:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
 
@@ -2982,6 +3079,14 @@ onetime@^2.0.0:
   dependencies:
     mimic-fn "^1.0.0"
 
+optimism@^0.16.2:
+  version "0.16.2"
+  resolved "https://registry.yarnpkg.com/optimism/-/optimism-0.16.2.tgz#519b0c78b3b30954baed0defe5143de7776bf081"
+  integrity sha512-zWNbgWj+3vLEjZNIh/okkY2EUfX+vB9TJopzIZwT1xxaMqC5hRLLraePod4c5n4He08xuXNH+zhKFFCu390wiQ==
+  dependencies:
+    "@wry/context" "^0.7.0"
+    "@wry/trie" "^0.3.0"
+
 optimist@^0.6.1:
   version "0.6.1"
   resolved "https://registry.yarnpkg.com/optimist/-/optimist-0.6.1.tgz#da3ea74686fa21a19a111c326e90eb15a0196686"
@@ -3284,6 +3389,15 @@ process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
 
+prop-types@^15.7.2:
+  version "15.8.1"
+  resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.8.1.tgz#67d87bf1a694f48435cf332c24af10214a3140b5"
+  integrity sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==
+  dependencies:
+    loose-envify "^1.4.0"
+    object-assign "^4.1.1"
+    react-is "^16.13.1"
+
 protocols@^1.1.0, protocols@^1.4.0:
   version "1.4.6"
   resolved "https://registry.yarnpkg.com/protocols/-/protocols-1.4.6.tgz#f8bb263ea1b5fd7a7604d26b8be39bd77678bf8a"
@@ -3317,6 +3431,11 @@ rc@^1.0.1, rc@^1.1.6, rc@^1.1.7, rc@^1.2.8:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
+react-is@^16.13.1, react-is@^16.7.0:
+  version "16.13.1"
+  resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.13.1.tgz#789729a4dc36de2999dc156dd6c1d9c18cea56a4"
+  integrity sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==
+
 read-pkg-up@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/read-pkg-up/-/read-pkg-up-1.0.1.tgz#9d63c13276c065918d57f002a57f40a1b643fb02"
@@ -3539,6 +3658,11 @@ resolve@^1.3.2:
   dependencies:
     path-parse "^1.0.5"
 
+response-iterator@^0.2.6:
+  version "0.2.6"
+  resolved "https://registry.yarnpkg.com/response-iterator/-/response-iterator-0.2.6.tgz#249005fb14d2e4eeb478a3f735a28fd8b4c9f3da"
+  integrity sha512-pVzEEzrsg23Sh053rmDUvLSkGXluZio0qu8VT6ukrYuvtjVfCbDZH9d6PGXb8HZfzdNZt8feXv/jvUzlhRgLnw==
+
 restore-cursor@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/restore-cursor/-/restore-cursor-2.0.0.tgz#9f7ee287f82fd326d4fd162923d62129eee0dfaf"
@@ -3940,6 +4064,11 @@ symbol-observable@^1.0.4, symbol-observable@^1.1.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-1.2.0.tgz#c22688aed4eab3cdc2dfeacbb561660560a00804"
 
+symbol-observable@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/symbol-observable/-/symbol-observable-4.0.0.tgz#5b425f192279e87f2f9b937ac8540d1984b39205"
+  integrity sha512-b19dMThMV4HVFynSAM1++gBHAbk2Tc/osgLIBZMKsyqh34jb2e8Os7T6ZW/Bt3pJFdBTd2JwAnAAEQV7rSNvcQ==
+
 tar@^4:
   version "4.4.4"
   resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.4.tgz#ec8409fae9f665a4355cc3b4087d0820232bb8cd"
@@ -4031,6 +4160,13 @@ trim-right@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/trim-right/-/trim-right-1.0.1.tgz#cb2e1203067e0c8de1f614094b9fe45704ea6003"
 
+ts-invariant@^0.10.3:
+  version "0.10.3"
+  resolved "https://registry.yarnpkg.com/ts-invariant/-/ts-invariant-0.10.3.tgz#3e048ff96e91459ffca01304dbc7f61c1f642f6c"
+  integrity sha512-uivwYcQaxAucv1CzRp2n/QdYPo4ILf9VXgH19zEIjFx2EJufV16P0JtJVpYHy89DItG6Kwj2oIUjrcK5au+4tQ==
+  dependencies:
+    tslib "^2.1.0"
+
 ts-node@7.0.1:
   version "7.0.1"
   resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-7.0.1.tgz#9562dc2d1e6d248d24bc55f773e3f614337d9baf"
@@ -4056,6 +4192,11 @@ tslib@^1.8.0, tslib@^1.8.1:
   version "1.9.2"
   resolved "https://registry.yarnpkg.com/tslib/-/tslib-1.9.2.tgz#8be0cc9a1f6dc7727c38deb16c2ebd1a2892988e"
 
+tslib@^2.1.0, tslib@^2.3.0, tslib@^2.4.0:
+  version "2.5.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.5.0.tgz#42bfed86f5787aeb41d031866c8f402429e0fddf"
+  integrity sha512-336iVw3rtn2BUK7ORdIAHTyxHGRIHVReokCR3XjbckJMK7ms8FysBfhLR8IXnAgy7T0PTPNBWKiH514FOW/WSg==
+
 tslint-config-prettier@1.15.0:
   version "1.15.0"
   resolved "https://registry.yarnpkg.com/tslint-config-prettier/-/tslint-config-prettier-1.15.0.tgz#76b9714399004ab6831fdcf76d89b73691c812cf"
@@ -4216,6 +4357,11 @@ validate-npm-package-license@^3.0.1:
     spdx-correct "^3.0.0"
     spdx-expression-parse "^3.0.0"
 
+value-or-promise@1.0.12:
+  version "1.0.12"
+  resolved "https://registry.yarnpkg.com/value-or-promise/-/value-or-promise-1.0.12.tgz#0e5abfeec70148c78460a849f6b003ea7986f15c"
+  integrity sha512-Z6Uz+TYwEqE7ZN50gwn+1LCVo9ZVrpxRPOhOLnncYkY1ZzOYtrX8Fwf/rFktZ8R5mJms6EZf5TqNOMeZmnPq9Q==
+
 well-known-symbols@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/well-known-symbols/-/well-known-symbols-1.0.0.tgz#73c78ae81a7726a8fa598e2880801c8b16225518"
@@ -4365,6 +4511,18 @@ zen-observable-ts@^0.8.10:
   dependencies:
     zen-observable "^0.8.0"
 
+zen-observable-ts@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/zen-observable-ts/-/zen-observable-ts-1.2.5.tgz#6c6d9ea3d3a842812c6e9519209365a122ba8b58"
+  integrity sha512-QZWQekv6iB72Naeake9hS1KxHlotfRpe+WGNbNx5/ta+R3DNjVO2bswf63gXlWDcs+EMd7XY8HfVQyP1X6T4Zg==
+  dependencies:
+    zen-observable "0.8.15"
+
+zen-observable@0.8.15:
+  version "0.8.15"
+  resolved "https://registry.yarnpkg.com/zen-observable/-/zen-observable-0.8.15.tgz#96415c512d8e3ffd920afd3889604e30b9eaac15"
+  integrity sha512-PQ2PC7R9rslx84ndNBZB/Dkv8V8fZEpk83RLgXtYd0fwUgEjseMn1Dgajh2x6S8QbZAFa9p2qVCEuYZNgve0dQ==
+
 zen-observable@^0.8.0:
   version "0.8.8"
   resolved "https://registry.yarnpkg.com/zen-observable/-/zen-observable-0.8.8.tgz#1ea93995bf098754a58215a1e0a7309e5749ec42"