diff --git a/.github/workflows/python-package-conda.yml b/.github/workflows/python-package-conda.yml
index f7ec6cea6..72b7191e5 100644
--- a/.github/workflows/python-package-conda.yml
+++ b/.github/workflows/python-package-conda.yml
@@ -11,7 +11,8 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       max-parallel: 5
-
+    env:
+      GITHUB_ACTIONS_CI: true
     steps:
     - uses: actions/checkout@v2
     - name: Set up Miniconda
diff --git a/mlxtend/evaluate/tests/test_bias_variance_decomp.py b/mlxtend/evaluate/tests/test_bias_variance_decomp.py
index eb17c0511..367f82482 100644
--- a/mlxtend/evaluate/tests/test_bias_variance_decomp.py
+++ b/mlxtend/evaluate/tests/test_bias_variance_decomp.py
@@ -113,7 +113,10 @@ def test_mse_bagging():
     APPVEYOR = False
 
 
-@pytest.mark.skipif(TRAVIS or APPVEYOR, reason="TensorFlow dependency")
+GITHUB_ACTIONS = os.getenv('GITHUB_ACTIONS_CI', 'false').lower() == 'true'
+
+
+@pytest.mark.skipif(TRAVIS or APPVEYOR or GITHUB_ACTIONS, reason="TensorFlow dependency")
 def test_keras():
     import tensorflow as tf