diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d95d6dbb0f24..4b896e802fb7 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,5 +41,7 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
       - name: Test on node.js ${{ matrix.node-version }}
+        # Hack: TRAVIS=1 has supports-color@5 returned true for GitHub CI
+        # Remove once `chalk` is bumped to 4.0.
         run: |
-          BABEL_ENV=test ./node_modules/.bin/jest --ci
+          BABEL_ENV=test CI=1 TRAVIS=1 ./node_modules/.bin/jest --ci