diff --git a/python2/httplib2/certs.py b/python2/httplib2/certs.py

index 59d1ffc..a2e7513 100644

--- a/python2/httplib2/certs.py

+++ b/python2/httplib2/certs.py

@@ -23,6 +23,7 @@ BUILTIN_CA_CERTS = os.path.join(

     os.path.dirname(os.path.abspath(__file__)), "cacerts.txt"

 )

+FEDORA_CA_CERTS = "/etc/pki/tls/certs/ca-bundle.crt"

 def where():

     env = os.environ.get("HTTPLIB2_CA_CERTS")

@@ -35,7 +36,7 @@ def where():

         return custom_ca_locater_where()

     if certifi_available:

         return certifi_where()

-    return BUILTIN_CA_CERTS

+    return FEDORA_CA_CERTS

 if __name__ == "__main__":

diff --git a/python3/httplib2/certs.py b/python3/httplib2/certs.py

index 59d1ffc..2708393 100644

--- a/python3/httplib2/certs.py

+++ b/python3/httplib2/certs.py

@@ -23,6 +23,8 @@ BUILTIN_CA_CERTS = os.path.join(

     os.path.dirname(os.path.abspath(__file__)), "cacerts.txt"

 )

+FEDORA_CA_CERTS = "/etc/pki/tls/certs/ca-bundle.crt"

+

 def where():

     env = os.environ.get("HTTPLIB2_CA_CERTS")

@@ -35,7 +37,7 @@ def where():

         return custom_ca_locater_where()

     if certifi_available:

         return certifi_where()

-    return BUILTIN_CA_CERTS

+    return FEDORA_CA_CERTS

 if __name__ == "__main__":

diff --git a/tests/test_cacerts_from_env.py b/tests/test_cacerts_from_env.py

index cb2bd9f..0fed4d5 100644

--- a/tests/test_cacerts_from_env.py

+++ b/tests/test_cacerts_from_env.py

@@ -7,6 +7,7 @@ import httplib2

 CA_CERTS_BUILTIN = os.path.join(os.path.dirname(httplib2.__file__), "cacerts.txt")

+FEDORA_CA_CERTS = "/etc/pki/tls/certs/ca-bundle.crt"

 CERTIFI_CERTS_FILE = "unittest_certifi_file"

 CUSTOM_CA_CERTS = "unittest_custom_ca_certs"

@@ -32,7 +33,7 @@ def ca_certs_tmpfile(clean_env):

 @mock.patch("httplib2.certs.certifi_available", False)

 @mock.patch("httplib2.certs.custom_ca_locater_available", False)

 def test_certs_file_from_builtin(clean_env):

-    assert httplib2.certs.where() == CA_CERTS_BUILTIN

+    assert httplib2.certs.where() == FEDORA_CA_CERTS

 @mock.patch("httplib2.certs.certifi_available", False)

@@ -44,7 +45,7 @@ def test_certs_file_from_environment(ca_certs_tmpfile):

     with pytest.raises(RuntimeError):

         httplib2.certs.where()

     os.environ.pop("HTTPLIB2_CA_CERTS")

-    assert httplib2.certs.where() == CA_CERTS_BUILTIN

+    assert httplib2.certs.where() == FEDORA_CA_CERTS

 @mock.patch("httplib2.certs.certifi_where", mock.MagicMock(return_value=CERTIFI_CERTS_FILE))

@@ -69,4 +70,4 @@ def test_with_certifi_removed_from_modules(ca_certs_tmpfile):

     os.environ["HTTPLIB2_CA_CERTS"] = ca_certs_tmpfile

     assert httplib2.certs.where() == ca_certs_tmpfile

     os.environ.pop("HTTPLIB2_CA_CERTS")

-    assert httplib2.certs.where() == CA_CERTS_BUILTIN

+    assert httplib2.certs.where() == FEDORA_CA_CERTS