diff --git a/package-lock.json b/package-lock.json
index 6319614..3281436 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -62,6 +62,7 @@
 			"resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
 			"integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
 			"dev": true,
+			"optional": true,
 			"requires": {
 				"kind-of": "^3.0.2",
 				"longest": "^1.0.1",
@@ -1790,12 +1791,14 @@
 				"balanced-match": {
 					"version": "1.0.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"brace-expansion": {
 					"version": "1.1.11",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"balanced-match": "^1.0.0",
 						"concat-map": "0.0.1"
@@ -1810,17 +1813,20 @@
 				"code-point-at": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"concat-map": {
 					"version": "0.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"console-control-strings": {
 					"version": "1.1.0",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"core-util-is": {
 					"version": "1.0.2",
@@ -1937,7 +1943,8 @@
 				"inherits": {
 					"version": "2.0.3",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"ini": {
 					"version": "1.3.5",
@@ -1949,6 +1956,7 @@
 					"version": "1.0.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"number-is-nan": "^1.0.0"
 					}
@@ -1963,6 +1971,7 @@
 					"version": "3.0.4",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"brace-expansion": "^1.1.7"
 					}
@@ -1970,12 +1979,14 @@
 				"minimist": {
 					"version": "0.0.8",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"minipass": {
 					"version": "2.2.4",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"safe-buffer": "^5.1.1",
 						"yallist": "^3.0.0"
@@ -1994,6 +2005,7 @@
 					"version": "0.5.1",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"minimist": "0.0.8"
 					}
@@ -2074,7 +2086,8 @@
 				"number-is-nan": {
 					"version": "1.0.1",
 					"bundled": true,
-					"dev": true
+					"dev": true,
+					"optional": true
 				},
 				"object-assign": {
 					"version": "4.1.1",
@@ -2086,6 +2099,7 @@
 					"version": "1.4.0",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"wrappy": "1"
 					}
@@ -2207,6 +2221,7 @@
 					"version": "1.0.2",
 					"bundled": true,
 					"dev": true,
+					"optional": true,
 					"requires": {
 						"code-point-at": "^1.0.0",
 						"is-fullwidth-code-point": "^1.0.0",
@@ -4969,7 +4984,8 @@
 			"version": "1.0.1",
 			"resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
 			"integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-			"dev": true
+			"dev": true,
+			"optional": true
 		},
 		"loose-envify": {
 			"version": "1.3.1",
@@ -8349,9 +8365,9 @@
 			"dev": true
 		},
 		"prettier": {
-			"version": "1.12.1",
-			"resolved": "https://registry.npmjs.org/prettier/-/prettier-1.12.1.tgz",
-			"integrity": "sha1-wa0g6APndJ+vkFpAnSNn4Gu+cyU=",
+			"version": "1.13.0",
+			"resolved": "https://registry.npmjs.org/prettier/-/prettier-1.13.0.tgz",
+			"integrity": "sha512-ubNahzMwHtdrSVGMMNabOHSeBKvZu+N5Z7Tu2CvbTexffL6aHwwOc7/fvEaWYTtvu4CtXnniHGA2vxV/NIH6KQ==",
 			"dev": true
 		},
 		"pretty-format": {
diff --git a/package.json b/package.json
index 416388c..2122c7c 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,7 @@
 		"jest": "23.0.1",
 		"lint-staged": "7.1.2",
 		"nyc": "11.8.0",
-		"prettier": "1.12.1"
+		"prettier": "1.13.0"
 	},
 	"nyc": {
 		"reporter": ["lcov", "text"]
diff --git a/yarn.lock b/yarn.lock
index 8323e30..2f4e473 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2982,9 +2982,9 @@ preserve@^0.2.0:
   version "0.2.0"
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
-prettier@1.12.1:
-  version "1.12.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.12.1.tgz#c1ad20e803e7749faf905a409d2367e06bbe7325"
+prettier@1.13.0:
+  version "1.13.0"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.13.0.tgz#054de8d5fb1a4405c845d16183f58a2c301f6f16"
 
 pretty-format@^22.4.3:
   version "22.4.3"