diff --git a/package.json b/package.json
index 5781e46..0f77d61 100644
--- a/package.json
+++ b/package.json
@@ -25,9 +25,9 @@
     "validator": "^13.7.0"
   },
   "devDependencies": {
-    "nock": "^9.0.2",
-    "sinon": "^4.1.5",
-    "tap": "^15.0.9",
+    "nock": "^13.0.0",
+    "sinon": "^14.0.0",
+    "tap": "^16.0.0",
     "unroll": "1.4.0"
   },
   "engines": {
diff --git a/test/echo-api-cert-10.cer b/test/echo-api-cert-11.cer
similarity index 73%
rename from test/echo-api-cert-10.cer
rename to test/echo-api-cert-11.cer
index 8af665d..713dc11 100644
--- a/test/echo-api-cert-10.cer
+++ b/test/echo-api-cert-11.cer
@@ -1,36 +1,36 @@
 -----BEGIN CERTIFICATE-----
-MIIF3jCCBMagAwIBAgIQASsRtcjaANz51ZqQaypmYDANBgkqhkiG9w0BAQsFADBG
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+iF8DGeo7FvqDHkx6PtkOgso=
 -----END CERTIFICATE-----
 -----BEGIN CERTIFICATE-----
 MIIESTCCAzGgAwIBAgITBn+UV4WH6Kx33rJTMlu8mYtWDTANBgkqhkiG9w0BAQsF
diff --git a/test/index.js b/test/index.js
index ea33a4a..aecf4b6 100644
--- a/test/index.js
+++ b/test/index.js
@@ -4,7 +4,7 @@ import verifier from '../index.js'
 import sinon    from 'sinon'
 
 
-const cert_url = 'https://s3.amazonaws.com/echo.api/echo-api-cert-10.pem' // latest valid cert
+const cert_url = 'https://s3.amazonaws.com/echo.api/echo-api-cert-11.pem' // latest valid cert
 
 test('handle missing cert_url parameter', function (t) {
     const signature = 'JbWZ4iO5ogpq1NhsOqyqq/QRrvc1/XyDwjcBO9wWSk//c11+gImmtWzMG9tDEW40t0Xwt1cnGU93DwUZQzMyzJ5CMi+09qVQUSIHiSmPekKaQRxS0Ibu7l7cXXuCcOBupbkheD/Dsd897Bm5SQwd1cFKRv+PJlpmGKimgh2QmbivogsEkFl8b9SW48kjKWazwj/XP2SrHY0bTvwMTVu7zvTcp0ZenEGlY2DNr5zSd1n6lmS6rgAt1IPwhBzqI0PVMngaM0DQhB0wUPj3QoIUh0IyMVAQzRFbQpS4UGrA4M9a5a+AGy0jCQKiRCI+Yi9iZYEVYvfafF/lyOUHHYcpOg=='
diff --git a/test/validate-cert.js b/test/validate-cert.js
index b398bd6..7f4d9d6 100644
--- a/test/validate-cert.js
+++ b/test/validate-cert.js
@@ -124,7 +124,7 @@ test('fails on expired certificate (Not After)', function (t) {
 })
 
 test('approves valid certifcate', function (t) {
-    const pem = fs.readFileSync(__dirname + '/echo-api-cert-10.cer')
+    const pem = fs.readFileSync(__dirname + '/echo-api-cert-11.cer')
     t.ok(validate(pem) === undefined, 'Certificate should be valid')
     t.end()
 })