diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 03ffba6b9b..fc226cf1c7 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -81,7 +81,7 @@ unit-cbt:
   image: $CI_IMAGE
   script:
     - yarn
-    - ./ci-cbt.sh test:unit
+    - ./scripts/ci-cbt.sh test:unit
 
 e2e-cbt:
   except:
@@ -93,7 +93,7 @@ e2e-cbt:
   image: $CI_IMAGE
   script:
     - yarn
-    - ./ci-cbt.sh test:e2e
+    - ./scripts/ci-cbt.sh test:e2e
 
 deploy-staging:
   only:
@@ -105,9 +105,9 @@ deploy-staging:
   script:
     - yarn
     - TARGET_DATACENTER=eu TARGET_ENV=staging VERSION=staging yarn build:bundle
-    - ./deploy.sh staging eu
+    - ./scripts/deploy.sh staging eu
     - TARGET_DATACENTER=us TARGET_ENV=staging VERSION=staging yarn build:bundle
-    - ./deploy.sh staging us
+    - ./scripts/deploy.sh staging us
 
 deploy-release:
   only:
@@ -121,9 +121,9 @@ deploy-release:
   script:
     - yarn
     - TARGET_DATACENTER=eu TARGET_ENV=production VERSION=release yarn build:bundle
-    - ./deploy.sh prod eu
+    - ./scripts/deploy.sh prod eu
     - TARGET_DATACENTER=us TARGET_ENV=production VERSION=release yarn build:bundle
-    - ./deploy.sh prod us
+    - ./scripts/deploy.sh prod us
 
 ########################################################################################################################
 # Notify
diff --git a/package.json b/package.json
index d1d61de324..3a122d3f09 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "dev": "ENV=development node test/server/server.js",
     "test": "yarn test:unit",
     "test:unit": "karma start ./test/unit/karma.local.conf.js",
-    "test:unit:cbt": "karma start ./test/unit/karma.cbt.conf.js",
+    "test:unit:cbt": "node ./scripts/karma-cbt-with-retry.js",
     "test:e2e": "yarn run test:e2e:bundle",
     "test:e2e:bundle": "TARGET_ENV=e2e-test yarn build && E2E_MODE=bundle wdio test/e2e/wdio.local.conf.js",
     "test:e2e:npm": "TARGET_ENV=e2e-test yarn build && (cd test/app && rm -rf node_modules && yarn) && E2E_MODE=npm wdio test/e2e/wdio.local.conf.js",
diff --git a/packages/logs/package.json b/packages/logs/package.json
index 62db4de4f6..06d2ed645f 100644
--- a/packages/logs/package.json
+++ b/packages/logs/package.json
@@ -10,7 +10,7 @@
     "build:bundle": "rm -rf bundle && webpack --config webpack.config.js --mode=production && yarn replace-build-env bundle",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
     "build:esm": "rm -rf esm && tsc -p tsconfig.esm.json && yarn replace-build-env esm",
-    "replace-build-env": "node ../../replace-build-env.js"
+    "replace-build-env": "node ../../scripts/replace-build-env.js"
   },
   "dependencies": {
     "@browser-sdk/core": "^1.1.0",
diff --git a/packages/rum/package.json b/packages/rum/package.json
index b1ebc920d1..5ef318674c 100644
--- a/packages/rum/package.json
+++ b/packages/rum/package.json
@@ -10,7 +10,7 @@
     "build:bundle": "rm -rf bundle && webpack --config webpack.config.js --mode=production && yarn replace-build-env bundle",
     "build:cjs": "rm -rf cjs && tsc -p tsconfig.cjs.json && yarn replace-build-env cjs",
     "build:esm": "rm -rf esm && tsc -p tsconfig.esm.json && yarn replace-build-env esm",
-    "replace-build-env": "node ../../replace-build-env.js"
+    "replace-build-env": "node ../../scripts/replace-build-env.js"
   },
   "dependencies": {
     "@browser-sdk/core": "^1.1.0",
diff --git a/build-env.js b/scripts/build-env.js
similarity index 92%
rename from build-env.js
rename to scripts/build-env.js
index 0f4edcc77c..5fd6c87c66 100644
--- a/build-env.js
+++ b/scripts/build-env.js
@@ -1,5 +1,5 @@
 const execSync = require('child_process').execSync
-const lernaJson = require('./lerna.json')
+const lernaJson = require('../lerna.json')
 
 let version
 switch (process.env.VERSION) {
diff --git a/ci-cbt.sh b/scripts/ci-cbt.sh
similarity index 100%
rename from ci-cbt.sh
rename to scripts/ci-cbt.sh
diff --git a/deploy.sh b/scripts/deploy.sh
similarity index 100%
rename from deploy.sh
rename to scripts/deploy.sh
diff --git a/scripts/karma-cbt-with-retry.js b/scripts/karma-cbt-with-retry.js
new file mode 100644
index 0000000000..dc765b6c18
--- /dev/null
+++ b/scripts/karma-cbt-with-retry.js
@@ -0,0 +1,33 @@
+'use strict'
+
+const path = require('path')
+const exec = require('child_process').exec
+
+const rootDirectory = path.join(__dirname, '..')
+const COMMAND = `${rootDirectory}/node_modules/.bin/karma start ${rootDirectory}/test/unit/karma.cbt.conf.js`
+const MAX_RETRY_COUNT = 3
+let retryCount = 0
+
+function executeWithRetry() {
+  let logs = ''
+  const current = exec(COMMAND)
+  current.stdout.pipe(process.stdout)
+  current.stdout.on('data', (data) => (logs += data))
+  current.on('exit', (code) => {
+    if (code !== 0 && isRetryAllowed(logs)) {
+      if (retryCount < MAX_RETRY_COUNT) {
+        retryCount += 1
+        console.log(`\n${COMMAND} (Retry ${retryCount}/${MAX_RETRY_COUNT})\n\n`)
+        executeWithRetry()
+      }
+    } else {
+      process.exit(code)
+    }
+  })
+}
+
+function isRetryAllowed(logs) {
+  return logs.indexOf('UnhandledRejection') !== -1
+}
+
+executeWithRetry()
diff --git a/replace-build-env.js b/scripts/replace-build-env.js
similarity index 100%
rename from replace-build-env.js
rename to scripts/replace-build-env.js
diff --git a/test/server/server.js b/test/server/server.js
index 4d024984de..d483ba97f2 100644
--- a/test/server/server.js
+++ b/test/server/server.js
@@ -8,7 +8,7 @@ const webpack = require('webpack')
 const logsConfig = require('../../packages/logs/webpack.config')
 const rumConfig = require('../../packages/rum/webpack.config')
 const fakeBackend = require('./fake-backend')
-const buildEnv = require('.././../build-env')
+const buildEnv = require('../../scripts/build-env')
 
 let port = 3000
 const app = express()