diff --git a/CHANGELOG.md b/CHANGELOG.md
index 13e1c417..cd7b92d4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,9 @@
 # Changelog
+
+## [v1.21.6](https://github.com/contentstack/contentstack-management-javascript/tree/v1.21.6) (2025-06-11)
+ - Fix
+   - Revert Retry Logic modification on x-ratelimit-remaining Header
+
 ## [v1.21.5](https://github.com/contentstack/contentstack-management-javascript/tree/v1.21.5) (2025-06-09)
  - Enhancement
    - Preview token support added
diff --git a/lib/core/concurrency-queue.js b/lib/core/concurrency-queue.js
index 247184bd..8c6ee14e 100644
--- a/lib/core/concurrency-queue.js
+++ b/lib/core/concurrency-queue.js
@@ -245,26 +245,19 @@ export function ConcurrencyQueue ({ axios, config }) {
       } else {
         return Promise.reject(responseHandler(error))
       }
-    } else {
-      const rateLimitRemaining = response.headers['x-ratelimit-remaining']
-      if (rateLimitRemaining !== undefined && parseInt(rateLimitRemaining) <= 0) {
-        return Promise.reject(responseHandler(error))
-      }
-
-      if ((response.status === 401 && this.config.refreshToken)) {
-        retryErrorType = `Error with status: ${response.status}`
-        networkError++
+    } else if ((response.status === 401 && this.config.refreshToken)) {
+      retryErrorType = `Error with status: ${response.status}`
+      networkError++
 
-        if (networkError > this.config.retryLimit) {
-          return Promise.reject(responseHandler(error))
-        }
-        this.running.shift()
-        // Cool down the running requests
-        delay(wait, response.status === 401)
-        error.config.retryCount = networkError
-        // deepcode ignore Ssrf: URL is dynamic
-        return axios(updateRequestConfig(error, retryErrorType, wait))
+      if (networkError > this.config.retryLimit) {
+        return Promise.reject(responseHandler(error))
       }
+      this.running.shift()
+      // Cool down the running requests
+      delay(wait, response.status === 401)
+      error.config.retryCount = networkError
+      // deepcode ignore Ssrf: URL is dynamic
+      return axios(updateRequestConfig(error, retryErrorType, wait))
     }
     if (this.config.retryCondition && this.config.retryCondition(error)) {
       retryErrorType = error.response ? `Error with status: ${response.status}` : `Error Code:${error.code}`
diff --git a/package-lock.json b/package-lock.json
index 15c34fe4..dca00a45 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@contentstack/management",
-  "version": "1.21.5",
+  "version": "1.21.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@contentstack/management",
-      "version": "1.21.5",
+      "version": "1.21.6",
       "license": "MIT",
       "dependencies": {
         "assert": "^2.1.0",
diff --git a/package.json b/package.json
index 2d302a11..a5fe22ae 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@contentstack/management",
-  "version": "1.21.5",
+  "version": "1.21.6",
   "description": "The Content Management API is used to manage the content of your Contentstack account",
   "main": "./dist/node/contentstack-management.js",
   "browser": "./dist/web/contentstack-management.js",
diff --git a/test/unit/concurrency-Queue-test.js b/test/unit/concurrency-Queue-test.js
index f90e85c2..de3e2197 100644
--- a/test/unit/concurrency-Queue-test.js
+++ b/test/unit/concurrency-Queue-test.js
@@ -506,76 +506,6 @@ describe('Concurrency queue test', () => {
       })
       .catch(done)
   })
-
-  it('should not retry when rate limit remaining is 0', done => {
-    const mock = new MockAdapter(api)
-    mock.onGet('/ratelimit').reply(429, { errorCode: 429 }, {
-      'x-ratelimit-remaining': '0'
-    })
-
-    reconfigureQueue({
-      retryOnError: true,
-      retryLimit: 3,
-      retryDelay: 300
-    })
-
-    api.get('/ratelimit')
-      .catch(error => {
-        expect(error.response.status).to.equal(429)
-        expect(error.config.retryCount).to.equal(0) // Should not have retried
-        expect(logHandlerStub.callCount).to.equal(0) // No retry logs
-        mock.restore()
-        done()
-      })
-  })
-
-  it('should retry when rate limit remaining is greater than 0', done => {
-    const mock = new MockAdapter(api)
-    mock.onGet('/ratelimit').reply(429, { errorCode: 429 }, {
-      'x-ratelimit-remaining': '5'
-    })
-    mock.onGet('/ratelimit').reply(200, { success: true })
-
-    reconfigureQueue({
-      retryOnError: true,
-      retryLimit: 3,
-      retryDelay: 300
-    })
-
-    api.get('/ratelimit')
-      .then(response => {
-        /* eslint-disable no-unused-expressions */
-        expect(response.status).to.equal(200)
-        expect(response.data.success).to.be.true
-        /* eslint-enable no-unused-expressions */
-        mock.restore()
-        done()
-      })
-      .catch(done)
-  })
-
-  it('should retry when rate limit remaining header is not present', done => {
-    const mock = new MockAdapter(api)
-    mock.onGet('/ratelimit').reply(429, { errorCode: 429 })
-    mock.onGet('/ratelimit').reply(200, { success: true })
-
-    reconfigureQueue({
-      retryOnError: true,
-      retryLimit: 3,
-      retryDelay: 300
-    })
-
-    api.get('/ratelimit')
-      .then(response => {
-        /* eslint-disable no-unused-expressions */
-        expect(response.status).to.equal(200)
-        expect(response.data.success).to.be.true
-        /* eslint-enable no-unused-expressions */
-        mock.restore()
-        done()
-      })
-      .catch(done)
-  })
 })
 
 function makeConcurrencyQueue (config) {