diff --git a/package-lock.json b/package-lock.json
index ac5ee74..34befc8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -833,9 +833,9 @@
       }
     },
     "create-cert": {
-      "version": "0.3.1",
-      "resolved": "https://registry.npmjs.org/create-cert/-/create-cert-0.3.1.tgz",
-      "integrity": "sha512-nIa7XAKYzdPLQ9sJYwck2e40xXNgNc+V7pIb//ooovzzUt2BaiUlZ18xDLnTEuW5CQy1ZDFVZKlH3AV/sB+CmA=="
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/create-cert/-/create-cert-1.0.2.tgz",
+      "integrity": "sha512-h3A0GN+q+nCBNhzaGqrGviIOZNuijcff8JVbM8qLxFpJA1k3GWOUnOY/X05iGv9NxAUt+u/MKcPED1KCqbt22w=="
     },
     "create-error-class": {
       "version": "3.0.2",
@@ -1031,9 +1031,9 @@
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
     "empower-core": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/empower-core/-/empower-core-0.6.1.tgz",
-      "integrity": "sha1-bBh/UC/O91VNV5MzlqrGVUg3crE=",
+      "version": "0.6.2",
+      "resolved": "https://registry.npmjs.org/empower-core/-/empower-core-0.6.2.tgz",
+      "integrity": "sha1-Wt71ZgiOMfuoC6CjbfR9cJQWkUQ=",
       "dev": true
     },
     "encodeurl": {
@@ -1060,9 +1060,9 @@
       "dev": true
     },
     "es5-ext": {
-      "version": "0.10.22",
-      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.22.tgz",
-      "integrity": "sha512-YXTXSlZkJsVwMEVljp1Bh5P9+Raa3524OMl9kywGMp1aazKTCnAqORRL/8dkuqNHk+LRYe0LezuS8PlUt3+mOw==",
+      "version": "0.10.23",
+      "resolved": "https://registry.npmjs.org/es5-ext/-/es5-ext-0.10.23.tgz",
+      "integrity": "sha1-dXi1G+l0IHpUh4IbVlOMIk5Oezg=",
       "dev": true
     },
     "es6-error": {
@@ -2306,10 +2306,18 @@
       "dev": true
     },
     "hullabaloo-config-manager": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/hullabaloo-config-manager/-/hullabaloo-config-manager-1.0.1.tgz",
-      "integrity": "sha1-xyvnuiSaZ8mba6PrH1WDf6AazY8=",
-      "dev": true
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/hullabaloo-config-manager/-/hullabaloo-config-manager-1.1.1.tgz",
+      "integrity": "sha512-ztKnkZV0TmxnumCDHHgLGNiDnotu4EHCp9YMkznWuo4uTtCyJ+cu+RNcxUeXYKTllpvLFWnbfWry09yzszgg+A==",
+      "dev": true,
+      "dependencies": {
+        "pkg-dir": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-2.0.0.tgz",
+          "integrity": "sha1-9tXREJ4Z1j7fQo4L1X4Sd3YVM0s=",
+          "dev": true
+        }
+      }
     },
     "ignore": {
       "version": "3.3.3",
@@ -4589,9 +4597,9 @@
       "dev": true
     },
     "readable-stream": {
-      "version": "2.2.10",
-      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.10.tgz",
-      "integrity": "sha512-HQEnnoV404e0EtwB9yNiuk2tJ+egeVC8Y9QBAxzDg8DBJt4BzRp+yQuIb/t3FIWkSTmIi+sgx7yVv/ZM0GNoqw==",
+      "version": "2.2.11",
+      "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.2.11.tgz",
+      "integrity": "sha512-h+8+r3MKEhkiVrwdKL8aWs1oc1VvBu33ueshOvS26RsZQ3Amhx/oO3TKe4lApSV9ueY6as8EAh7mtuFjdlhg9Q==",
       "dev": true
     },
     "readdirp": {
@@ -4762,12 +4770,20 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/resolve-cwd/-/resolve-cwd-1.0.0.tgz",
       "integrity": "sha1-Tq7qQe0EDRcCRX32SkKysH0kb58=",
-      "dev": true
+      "dev": true,
+      "dependencies": {
+        "resolve-from": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
+          "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
+          "dev": true
+        }
+      }
     },
     "resolve-from": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
-      "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-3.0.0.tgz",
+      "integrity": "sha1-six699nWiBvItuZTM17rywoYh0g=",
       "dev": true
     },
     "restore-cursor": {
@@ -4795,9 +4811,9 @@
       "dev": true
     },
     "safe-buffer": {
-      "version": "5.1.0",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.0.tgz",
-      "integrity": "sha512-aSLEDudu6OoRr/2rU609gRmnYboRLxgDG1z9o2Q0os7236FwvcqIOO8r8U5JUEwivZOhDaKlFO4SbPTJYyBEyQ==",
+      "version": "5.0.1",
+      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.0.1.tgz",
+      "integrity": "sha1-0mPKVGls2KMGtcplUekt5XkY++c=",
       "dev": true
     },
     "semver": {
@@ -4937,9 +4953,9 @@
       "integrity": "sha1-+vUbnrdKrvOzrPStX2Gr8ky3uT4="
     },
     "string_decoder": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.1.tgz",
-      "integrity": "sha1-YuIA8DmVWmgQ2N8KM//A8BNmLZg=",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.0.2.tgz",
+      "integrity": "sha1-sp4fThEl+pehA4K4pTNze3SR4Xk=",
       "dev": true
     },
     "string-width": {
@@ -5343,6 +5359,12 @@
           "resolved": "https://registry.npmjs.org/get-stdin/-/get-stdin-5.0.1.tgz",
           "integrity": "sha1-Ei4WFZHiH/TFJTAwVpPyDmOTo5g=",
           "dev": true
+        },
+        "resolve-from": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-2.0.0.tgz",
+          "integrity": "sha1-lICrIOlP+h2egKgEx+oUdhGWa1c=",
+          "dev": true
         }
       }
     },
diff --git a/package.json b/package.json
index 9ba715b..0afc7bc 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
   },
   "homepage": "https://github.com/lukechilds/create-test-server",
   "dependencies": {
-    "create-cert": "^0.3.1",
+    "create-cert": "^1.0.2",
     "express": "^4.15.3",
     "pify": "^3.0.0"
   },
diff --git a/src/index.js b/src/index.js
index a533416..2a62ec6 100644
--- a/src/index.js
+++ b/src/index.js
@@ -7,12 +7,12 @@ const pify = require('pify');
 const createCert = require('create-cert');
 
 const createTestServer = opts => createCert(opts && opts.certificate)
-	.then(cert => {
+	.then(keys => {
 		const app = express();
 		const server = http.createServer(app);
-		const sslServer = https.createServer(cert.keys, app);
+		const sslServer = https.createServer(keys, app);
 
-		app.caCert = cert.caKeys.cert;
+		app.caCert = keys.caCert;
 
 		app.listen = () => Promise.all([
 			pify(server.listen.bind(server))().then(() => {