diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
index 993722c91..60cd2316b 100644
--- a/.buildkite/pipeline.yml
+++ b/.buildkite/pipeline.yml
@@ -47,6 +47,10 @@ steps:
     key: qa
     agents:
       queue: v1
+    env:
+      SEGMENT_CODECOV_FLAGS: 'browser'
+      SEGMENT_CODECOV_ARGS: '--dir=./packages/browser/coverage'
+      COVERAGE: true
     commands:
       - npm config set "//registry.npmjs.org/:_authToken" $${NPM_TOKEN}
       - echo "--- Install dependencies"
@@ -82,6 +86,10 @@ steps:
           paths: ['.yarn/cache/']
 
   - label: '[Core] Lint + Test'
+    env:
+      SEGMENT_CODECOV_FLAGS: 'core'
+      SEGMENT_CODECOV_ARGS: '--dir=./packages/core/coverage'
+      COVERAGE: true
     agents:
       queue: v1
     commands:
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a7db4a5a2..2f6617cdb 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,8 +26,14 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-turbo-
       - run: yarn turbo run --filter='./packages/node*' lint
-      - run: yarn turbo run --filter='./packages/node*' test
+      - run: COVERAGE=true yarn turbo run --filter='./packages/node*' test
       - run: yarn turbo run --filter='./packages/node-integration-tests' test:perf-and-durability
+      - uses: codecov/codecov-action@v5
+        with:
+          fail_ci_if_error: true
+          flags: node
+          directory: ./packages/node/coverage
+          token: ${{ secrets.CODECOV_TOKEN }}
   analytics-node-cf-workers:
     name: 'analytics-node QA (Cloudflare Workers)'
     runs-on: ubuntu-latest
diff --git a/codecov.yml b/codecov.yml
index f5be7fd90..f494c1163 100644
--- a/codecov.yml
+++ b/codecov.yml
@@ -5,3 +5,5 @@ coverage:
         target: auto
         threshold: 0%
         base: auto
+comment:
+  show_carryforward_flags: true
diff --git a/packages/browser/jest.config.js b/packages/browser/jest.config.js
index 2e212a7fb..7dfb96f4d 100644
--- a/packages/browser/jest.config.js
+++ b/packages/browser/jest.config.js
@@ -6,10 +6,10 @@ module.exports = createJestTSConfig(__dirname, {
   testEnvironment: 'jsdom',
   coverageThreshold: {
     global: {
-      branches: 74,
-      functions: 80,
-      lines: 87,
-      statements: 82,
+      branches: 0,
+      functions: 0,
+      lines: 0,
+      statements: 0,
     },
   },
 })