diff --git a/.env.development b/.env.development
index ee578f76e..c3c003740 100644
--- a/.env.development
+++ b/.env.development
@@ -28,7 +28,7 @@ ENABLE_COPPA_COMPLIANCE=''
 ENABLE_ACCOUNT_DELETION=''
 ENABLE_DOB_UPDATE=''
 MARKETING_EMAILS_OPT_IN=''
-SHOW_EMAIL_CHANNEL=''
+SHOW_EMAIL_CHANNEL='true'
 APP_ID=
 MFE_CONFIG_API_URL=
 PASSWORD_RESET_SUPPORT_LINK='mailto:support@example.com'
diff --git a/package-lock.json b/package-lock.json
index b3572f4a7..453ae34a2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,7 @@
       "license": "AGPL-3.0",
       "dependencies": {
         "@edx/brand": "npm:@openedx/brand-openedx@^1.2.2",
-        "@edx/frontend-component-header": "5.5.0",
+        "@edx/frontend-component-header": "^5.6.0",
         "@edx/frontend-platform": "8.1.2",
         "@edx/openedx-atlas": "^0.6.0",
         "@fortawesome/fontawesome-svg-core": "^6.6.0",
@@ -2010,10 +2010,9 @@
       }
     },
     "node_modules/@edx/frontend-component-header": {
-      "version": "5.5.0",
-      "resolved": "https://registry.npmjs.org/@edx/frontend-component-header/-/frontend-component-header-5.5.0.tgz",
-      "integrity": "sha512-nvpuTIx1o27LUGJ17HpOOm+PX0gg/YumWUMsrl1gSjbrTksyDLOxS1Y4thqlrWzD+dAgk5YKMowZM2BLiRDguQ==",
-      "license": "AGPL-3.0",
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/@edx/frontend-component-header/-/frontend-component-header-5.6.0.tgz",
+      "integrity": "sha512-ITLLrej6BbWVc/0baMkKg/ACTvUGSR188Rn/BC2Y82Tdu8gRsZB6+0GUsDX/6FJjeIazLXdUusKlfwVU90sXLA==",
       "dependencies": {
         "@fortawesome/fontawesome-svg-core": "6.6.0",
         "@fortawesome/free-brands-svg-icons": "6.6.0",
diff --git a/package.json b/package.json
index d7df66233..3cca35c71 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
   ],
   "dependencies": {
     "@edx/brand": "npm:@openedx/brand-openedx@^1.2.2",
-    "@edx/frontend-component-header": "5.5.0",
+    "@edx/frontend-component-header": "^5.6.0",
     "@edx/frontend-platform": "8.1.2",
     "@edx/openedx-atlas": "^0.6.0",
     "@fortawesome/fontawesome-svg-core": "^6.6.0",
diff --git a/src/account-settings/site-language/service.js b/src/account-settings/site-language/service.js
index 66466949b..5b8c9f2ef 100644
--- a/src/account-settings/site-language/service.js
+++ b/src/account-settings/site-language/service.js
@@ -23,10 +23,15 @@ export async function patchPreferences(username, params) {
 
 export async function postSetLang(code) {
   const formData = new FormData();
+  const requestConfig = {
+    headers: {
+      Accept: 'application/json',
+      'X-Requested-With': 'XMLHttpRequest',
+    },
+  };
+  const url = `${getConfig().LMS_BASE_URL}/i18n/setlang/`;
   formData.append('language', code);
 
   await getAuthenticatedHttpClient()
-    .post(`${getConfig().LMS_BASE_URL}/i18n/setlang/`, formData, {
-      headers: { 'X-Requested-With': 'XMLHttpRequest' },
-    });
+    .post(url, formData, requestConfig);
 }
diff --git a/src/account-settings/third-party-auth/data/service.js b/src/account-settings/third-party-auth/data/service.js
index 344913ee7..f3d07e53c 100644
--- a/src/account-settings/third-party-auth/data/service.js
+++ b/src/account-settings/third-party-auth/data/service.js
@@ -16,8 +16,9 @@ export async function getThirdPartyAuthProviders() {
 }
 
 export async function postDisconnectAuth(url) {
+  const requestConfig = { headers: { Accept: 'application/json' } };
   const { data } = await getAuthenticatedHttpClient()
-    .post(url)
+    .post(url, {}, requestConfig)
     .catch(handleRequestError);
   return data;
 }
diff --git a/src/notification-preferences/data/constants.js b/src/notification-preferences/data/constants.js
index a3a3a9e5b..29091ce52 100644
--- a/src/notification-preferences/data/constants.js
+++ b/src/notification-preferences/data/constants.js
@@ -1,7 +1,6 @@
 const EMAIL_CADENCE = {
   DAILY: 'Daily',
   WEEKLY: 'Weekly',
-  NEVER: 'Never',
 };
 
 export default EMAIL_CADENCE;