diff --git a/lib/handlers/connect.js b/lib/handlers/connect.js
index 6e27e6ad..43011d23 100644
--- a/lib/handlers/connect.js
+++ b/lib/handlers/connect.js
@@ -74,7 +74,6 @@ function init (client, packet, done) {
   if (returnCode > 0) {
     const error = new Error(errorMessages[returnCode])
     error.errorCode = returnCode
-    console.error(error)
     doConnack(
       { client, returnCode, sessionPresent: false },
       done.bind(this, error))
diff --git a/package.json b/package.json
index fbfc295b..90465bc3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "aedes",
-  "version": "0.51.0",
+  "version": "0.51.1",
   "description": "Stream-based MQTT broker",
   "main": "aedes.js",
   "types": "aedes.d.ts",
@@ -108,7 +108,7 @@
     "concat-stream": "^2.0.0",
     "duplexify": "^4.1.2",
     "license-checker": "^25.0.1",
-    "markdownlint-cli": "^0.39.0",
+    "markdownlint-cli": "^0.40.0",
     "mqtt": "^5.3.5",
     "mqtt-connection": "^4.1.0",
     "pre-commit": "^1.2.2",
@@ -129,7 +129,7 @@
     "fastparallel": "^2.4.1",
     "fastseries": "^2.0.0",
     "hyperid": "^3.2.0",
-    "mqemitter": "^5.0.0",
+    "mqemitter": "^6.0.0",
     "mqtt-packet": "^9.0.0",
     "retimer": "^4.0.0",
     "reusify": "^1.0.4",