diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 473e7c5..d7873fb 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,15 +29,14 @@ jobs:
       - name: Display Python version
         run: python -c "import sys; print(sys.version)"
 
-      - name: Install dependecies
-        uses: VaultVulp/action-pipenv@v2.0.1
-        with:
-          command: install --dev
+      - name: Install pipenv
+        run: pip install --user pipenv
+        
+      - name: Install all dependencies, including development ones
+        run: pipenv sync --dev
 
       - name: Install Django
         run: pip install -q Django~=${{ matrix.django-version }}
 
       - name: Test
-        uses: VaultVulp/action-pipenv@v2.0.1
-        with:
-          command: run test
+        run: pipenv run test
diff --git a/testproject/tests/test_crypto_instance.py b/testproject/tests/test_crypto_instance.py
index e250b9d..d4f0501 100644
--- a/testproject/tests/test_crypto_instance.py
+++ b/testproject/tests/test_crypto_instance.py
@@ -9,8 +9,9 @@
 class TestCryptoInstance(TestCase):
 
     def test_should_have_a_default_secret_key(self):
-        self.assertEqual(crypto.key, 'MY_SECURE_KEY')
-        self.assertEqual(crypto.key, conf.THUMBOR_SECURITY_KEY)
+        key = crypto.key.decode('utf-8')
+        self.assertEqual(key, 'MY_SECURE_KEY')
+        self.assertEqual(key, conf.THUMBOR_SECURITY_KEY)
 
     @override_settings(THUMBOR_SECURITY_KEY='custom-security-key')
     def test_should_read_key_from_settings(self):