diff --git a/package.json b/package.json
index b8539ea7e3dd6b3ed70decaeee21b6988ea40bea..6916382e84564fed51ec6caf9f9e665cb66a7922 100644
--- a/package.json
+++ b/package.json
@@ -161,7 +161,7 @@
     "jest-silent-reporter": "0.1.2",
     "mockdate": "2.0.2",
     "nock": "10.0.6",
-    "prettier": "1.16.4",
+    "prettier": "1.17.0",
     "pretty-quick": "1.10.0",
     "semantic-release": "15.13.3",
     "tmp-promise": "1.0.5"
diff --git a/yarn.lock b/yarn.lock
index b8fc176d01b084d1d0d09a14fa4f86810605766c..1077ce912c508e94843847d1652947aeea4373a7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -139,7 +139,7 @@
     exec-sh "^0.3.2"
     minimist "^1.2.0"
 
-"@jest/console@^24.3.0", "@jest/console@^24.7.1":
+"@jest/console@^24.7.1":
   version "24.7.1"
   resolved "https://registry.yarnpkg.com/@jest/console/-/console-24.7.1.tgz#32a9e42535a97aedfe037e725bd67e954b459545"
   integrity sha512-iNhtIy2M8bXlAOULWVTUxmnelTLFneTNEkHCgPmgd+zNwy9zVddJ6oS5rZ9iwoscNdT5mMwUd0C51v/fSlzItg==
@@ -191,7 +191,7 @@
     "@jest/types" "^24.7.0"
     jest-mock "^24.7.0"
 
-"@jest/fake-timers@^24.5.0", "@jest/fake-timers@^24.7.1":
+"@jest/fake-timers@^24.7.1":
   version "24.7.1"
   resolved "https://registry.yarnpkg.com/@jest/fake-timers/-/fake-timers-24.7.1.tgz#56e5d09bdec09ee81050eaff2794b26c71d19db2"
   integrity sha512-4vSQJDKfR2jScOe12L9282uiwuwQv9Lk7mgrCSZHA9evB9efB/qx8i0KJxsAKtp8fgJYBJdYY7ZU6u3F4/pyjA==
@@ -235,7 +235,7 @@
     graceful-fs "^4.1.15"
     source-map "^0.6.0"
 
-"@jest/test-result@^24.5.0", "@jest/test-result@^24.7.1":
+"@jest/test-result@^24.7.1":
   version "24.7.1"
   resolved "https://registry.yarnpkg.com/@jest/test-result/-/test-result-24.7.1.tgz#19eacdb29a114300aed24db651e5d975f08b6bbe"
   integrity sha512-3U7wITxstdEc2HMfBX7Yx3JZgiNBubwDqQMh+BXmZXHa3G13YWF3p6cK+5g0hGkN3iufg/vGPl3hLxQXD74Npg==
@@ -275,7 +275,7 @@
     source-map "^0.6.1"
     write-file-atomic "2.4.1"
 
-"@jest/types@^24.5.0", "@jest/types@^24.7.0":
+"@jest/types@^24.7.0":
   version "24.7.0"
   resolved "https://registry.yarnpkg.com/@jest/types/-/types-24.7.0.tgz#c4ec8d1828cdf23234d9b4ee31f5482a3f04f48b"
   integrity sha512-ipJUa2rFWiKoBqMKP63Myb6h9+iT3FHRTF2M8OR6irxWzItisa8i4dcSg14IbvmXUnBlHBlUQPYUHWyX3UPpYA==
@@ -501,11 +501,6 @@
     "@types/minimatch" "*"
     "@types/node" "*"
 
-"@types/istanbul-lib-coverage@^1.1.0":
-  version "1.1.0"
-  resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-1.1.0.tgz#2cc2ca41051498382b43157c8227fea60363f94a"
-  integrity sha512-ohkhb9LehJy+PA40rDtGAji61NCgdtKLAlFoYp4cnuuQEswwdK3vz9SOIkkyc3wrk8dzjphQApNs56yyXLStaQ==
-
 "@types/istanbul-lib-coverage@^2.0.0":
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.0.tgz#1eb8c033e98cf4e1a4cedcaf8bcafe8cb7591e85"
@@ -3991,7 +3986,7 @@ jest-matcher-utils@^24.7.0:
     jest-get-type "^24.3.0"
     pretty-format "^24.7.0"
 
-jest-message-util@^24.5.0, jest-message-util@^24.7.1:
+jest-message-util@^24.7.1:
   version "24.7.1"
   resolved "https://registry.yarnpkg.com/jest-message-util/-/jest-message-util-24.7.1.tgz#f1dc3a6c195647096a99d0f1dadbc447ae547018"
   integrity sha512-dk0gqVtyqezCHbcbk60CdIf+8UHgD+lmRHifeH3JRcnAqh4nEyPytSc9/L1+cQyxC+ceaeP696N4ATe7L+omcg==
@@ -4005,7 +4000,7 @@ jest-message-util@^24.5.0, jest-message-util@^24.7.1:
     slash "^2.0.0"
     stack-utils "^1.0.1"
 
-jest-mock@^24.5.0, jest-mock@^24.7.0:
+jest-mock@^24.7.0:
   version "24.7.0"
   resolved "https://registry.yarnpkg.com/jest-mock/-/jest-mock-24.7.0.tgz#e49ce7262c12d7f5897b0d8af77f6db8e538023b"
   integrity sha512-6taW4B4WUcEiT2V9BbOmwyGuwuAFT2G8yghF7nyNW1/2gq5+6aTqSPcS9lS6ArvEkX55vbPAS/Jarx5LSm4Fng==
@@ -6451,10 +6446,10 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
-prettier@1.16.4:
-  version "1.16.4"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.16.4.tgz#73e37e73e018ad2db9c76742e2647e21790c9717"
-  integrity sha512-ZzWuos7TI5CKUeQAtFd6Zhm2s6EpAD/ZLApIhsF9pRvRtM1RFo61dM/4MSRUA0SuLugA/zgrZD8m0BaY46Og7g==
+prettier@1.17.0:
+  version "1.17.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.17.0.tgz#53b303676eed22cc14a9f0cec09b477b3026c008"
+  integrity sha512-sXe5lSt2WQlCbydGETgfm1YBShgOX4HxQkFPvbxkcwgDvGDeqVau8h+12+lmSVlP3rHPz0oavfddSZg/q+Szjw==
 
 pretty-format@^24.7.0:
   version "24.7.0"