diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9f90a0993..a1c249e65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+## [4.1.1](https://github.com/socketio/engine.io/compare/4.1.0...4.1.1) (2021-02-02)
+
+
+### Bug Fixes
+
+* do not reset the ping timer after upgrade ([ff2b8ab](https://github.com/socketio/engine.io/commit/ff2b8aba48ebcb0de5626d3b76fddc94c398395f)), closes [/github.com/socketio/socket.io-client-swift/pull/1309#issuecomment-768475704](https://github.com//github.com/socketio/socket.io-client-swift/pull/1309/issues/issuecomment-768475704)
+
+
 # [4.1.0](https://github.com/socketio/engine.io/compare/4.0.6...4.1.0) (2021-01-14)
 
 
diff --git a/package-lock.json b/package-lock.json
index a1c9e6ff7..c335cecbd 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "engine.io",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -526,9 +526,9 @@
       "dev": true
     },
     "engine.io-client": {
-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.1.0.tgz",
-      "integrity": "sha512-OUmn4m71/lW3ixICv4h3DuBRuh3ri0w3cDuepjsrINSbbqbni4Xw1shTFiKhl0v58lEtNpwJTpSKJJ3fondu5Q==",
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-4.1.1.tgz",
+      "integrity": "sha512-iYasV/EttP/2pLrdowe9G3zwlNIFhwny8VSIh+vPlMnYZqSzLsTzSLa9hFy015OrH1s4fzoYxeHjVkO8hSFKwg==",
       "dev": true,
       "requires": {
         "base64-arraybuffer": "0.1.4",
diff --git a/package.json b/package.json
index 39ce5b244..9ab7e89e6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "engine.io",
-  "version": "4.1.0",
+  "version": "4.1.1",
   "description": "The realtime engine behind Socket.IO. Provides the foundation of a bidirectional connection between client and server",
   "main": "lib/engine.io.js",
   "author": "Guillermo Rauch <guillermo@learnboost.com>",
@@ -36,7 +36,7 @@
   "devDependencies": {
     "babel-eslint": "^8.0.2",
     "eiows": "^3.3.0",
-    "engine.io-client": "4.1.0",
+    "engine.io-client": "4.1.1",
     "engine.io-client-v3": "npm:engine.io-client@3.5.0",
     "eslint": "^4.19.1",
     "eslint-config-prettier": "^6.9.0",