diff --git a/.circleci/config.yml b/.circleci/config.yml
index a02ab093d2..cc2943426e 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -3,7 +3,7 @@ version: 2.1
 parameters:
   run_flaky_tests:
     type: boolean
-    default: false
+    default: true
 orbs:
   browser-tools: circleci/browser-tools@1.4.4
   win: circleci/windows@5.0
@@ -640,7 +640,7 @@ jobs:
         type: string
       jobsize:
         type: string
-    parallelism: 10
+    parallelism: 1
     steps:
       - checkout
       - attach_workspace:
diff --git a/apps/remix-ide-e2e/src/tests/metamask.test.ts b/apps/remix-ide-e2e/src/tests/metamask.test.ts
index 0bf909e517..49235c45a2 100644
--- a/apps/remix-ide-e2e/src/tests/metamask.test.ts
+++ b/apps/remix-ide-e2e/src/tests/metamask.test.ts
@@ -35,7 +35,7 @@ const tests = {
     return sources
   },
 
-  'Should connect to Sepolia Test Network using MetaMask #group1': function (browser: NightwatchBrowser) {
+  'Should connect to Sepolia Test Network using MetaMask #flaky #group1': function (browser: NightwatchBrowser) {
     if (!checkBrowserIsChrome(browser)) return
     browser.waitForElementPresent('*[data-id="remixIdeSidePanel"]')
       .setupMetamask(passphrase, password)