diff --git a/package.json b/package.json
index dd0edc2..73ca936 100644
--- a/package.json
+++ b/package.json
@@ -32,6 +32,7 @@
     "eslint-config-oclif": "3.1.0",
     "eslint-config-oclif-typescript": "0.1.0",
     "globby": "10.0.2",
+    "prettier": "1.19.1",
     "ts-node": "8.6.2",
     "typescript": "3.7.5"
   },
diff --git a/yarn.lock b/yarn.lock
index 3881427..382c129 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2151,6 +2151,11 @@ prepend-http@^2.0.0:
   resolved "https://registry.yarnpkg.com/prepend-http/-/prepend-http-2.0.0.tgz#e92434bfa5ea8c19f41cdfd401d741a3c819d897"
   integrity sha1-6SQ0v6XqjBn0HN/UAddBo8gZ2Jc=
 
+prettier@1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
+  integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
+
 printj@~1.1.0:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/printj/-/printj-1.1.2.tgz#d90deb2975a8b9f600fb3a1c94e3f4c53c78a222"