diff --git a/package.json b/package.json
index 202900f..6b0d098 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,6 @@
     "@types/uuid": "^3.4.3",
     "number-to-words": "^1.2.3",
     "pluralize": "^3.0.0",
-    "postal": "^2.0.5",
     "uuid": "^3.2.1"
   },
   "devDependencies": {
@@ -71,7 +70,6 @@
     "@types/node": "^6.0.46",
     "@types/node-uuid": "0.0.28",
     "@types/pluralize": "0.0.27",
-    "@types/postal": "^1.0.28",
     "chai": "^3.5.0",
     "chai-as-promised": "^5.3.0",
     "coveralls": "^3.0.0",
diff --git a/yarn.lock b/yarn.lock
index ecc04ff..6d2f820 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -28,10 +28,6 @@
   version "0.0.27"
   resolved "https://registry.yarnpkg.com/@types/pluralize/-/pluralize-0.0.27.tgz#087354a791ce027db1101ff399db6111fc9275f7"
 
-"@types/postal@^1.0.28":
-  version "1.0.29"
-  resolved "https://registry.yarnpkg.com/@types/postal/-/postal-1.0.29.tgz#aaf92d64f88b4a36b1980f24b7011ec09cf68d1a"
-
 "@types/strip-bom@^3.0.0":
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/@types/strip-bom/-/strip-bom-3.0.0.tgz#14a8ec3956c2e81edb7520790aecf21c290aebd2"
@@ -1149,7 +1145,7 @@ lodash.keys@^3.0.0:
     lodash.isarguments "^3.0.0"
     lodash.isarray "^3.0.0"
 
-lodash@^4.12.0, lodash@^4.17.4:
+lodash@^4.17.4:
   version "4.17.5"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.5.tgz#99a92d65c0272debe8c96b6057bc8fbfa3bed511"
 
@@ -1517,12 +1513,6 @@ pluralize@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/pluralize/-/pluralize-3.1.0.tgz#84213d0a12356069daa84060c559242633161368"
 
-postal@^2.0.5:
-  version "2.0.5"
-  resolved "https://registry.yarnpkg.com/postal/-/postal-2.0.5.tgz#7f9f035943a24daa9963ac5a53b5d0cf07df24b9"
-  dependencies:
-    lodash "^4.12.0"
-
 prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"