diff --git a/oauth2client/client.py b/oauth2client/client.py
index 5432c82..9ebbcbf 100644
--- a/oauth2client/client.py
+++ b/oauth2client/client.py
@@ -938,7 +938,7 @@ def _detect_gce_environment(urlopen=None):
   # the metadata resolution was particularly slow. The latter case is
   # "unlikely".
   try:
-    response = urlopen('http://169.254.169.254/', timeout=0.1)
+    response = urlopen('http://169.254.169.254/', timeout=1)
     return response.info().get('Metadata-Flavor', '') == 'Google'
   except socket.timeout:
     logger.info('Timeout attempting to reach GCE metadata service.')
diff --git a/tests/test_oauth2client.py b/tests/test_oauth2client.py
index aa3f068..fb44de4 100644
--- a/tests/test_oauth2client.py
+++ b/tests/test_oauth2client.py
@@ -215,7 +215,7 @@ class GoogleCredentialsTests(unittest.TestCase):
                            autospec=True) as urlopen:
       self.assertEqual('GCE_PRODUCTION', _get_environment())
       urlopen.assert_called_once_with(
-          'http://169.254.169.254/', timeout=0.1)
+          'http://169.254.169.254/', timeout=1)
 
   def test_get_environment_unknown(self):
     os.environ['SERVER_SOFTWARE'] = ''
@@ -224,7 +224,7 @@ class GoogleCredentialsTests(unittest.TestCase):
                            autospec=True) as urlopen:
       self.assertEqual(DEFAULT_ENV_NAME, _get_environment())
       urlopen.assert_called_once_with(
-          'http://169.254.169.254/', timeout=0.1)
+          'http://169.254.169.254/', timeout=1)
 
   def test_get_environment_variable_file(self):
     environment_variable_file = datafile(