diff --git a/package.json b/package.json
index e0c13fc..6afd159 100644
--- a/package.json
+++ b/package.json
@@ -24,7 +24,6 @@
 		"@types/smtp-server": "3.5.4",
 		"@typescript-eslint/eslint-plugin": "3.2.0",
 		"@typescript-eslint/parser": "3.2.0",
-		"addressparser": "1.0.1",
 		"ava": "3.8.2",
 		"eslint": "7.2.0",
 		"eslint-config-prettier": "6.11.0",
@@ -58,5 +57,8 @@
 		"test": "ava --serial",
 		"test-cjs": "npm run build && npm run test -- --node-arguments='--title=cjs'"
 	},
-	"license": "MIT"
+	"license": "MIT",
+	"dependencies": {
+		"addressparser": "^1.0.1"
+	}
 }
diff --git a/yarn.lock b/yarn.lock
index e5d8858..eb3eace 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -247,9 +247,9 @@ acorn@^7.1.1, acorn@^7.2.0:
   resolved "https://registry.npmjs.org/acorn/-/acorn-7.2.0.tgz#17ea7e40d7c8640ff54a694c889c26f31704effe"
   integrity sha512-apwXVmYVpQ34m/i71vrApRrRKCWQnZZF1+npOD0WV5xZFfwWOmKGQ2RWlfdy9vWITsenisM8M0Qeq8agcFHNiQ==
 
-addressparser@1.0.1:
+addressparser@^1.0.1:
   version "1.0.1"
-  resolved "https://registry.npmjs.org/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
+  resolved "https://registry.yarnpkg.com/addressparser/-/addressparser-1.0.1.tgz#47afbe1a2a9262191db6838e4fd1d39b40821746"
   integrity sha1-R6++GiqSYhkdtoOOT9HTm0CCF0Y=
 
 aggregate-error@^3.0.0: