diff -Nur httplib2-0.11.3.orig/python2/httplib2/__init__.py httplib2-0.11.3/python2/httplib2/__init__.py
--- httplib2-0.11.3.orig/python2/httplib2/__init__.py	2018-06-10 17:12:37.289548256 -0700
+++ httplib2-0.11.3/python2/httplib2/__init__.py	2018-06-10 17:16:52.193649649 -0700
@@ -218,8 +218,9 @@
     CA_CERTS = ca_certs_locater.get()
 except ImportError:
     # Default CA certificates file bundled with httplib2.
-    CA_CERTS = os.path.join(
-        os.path.dirname(os.path.abspath(__file__ )), "cacerts.txt")
+    #CA_CERTS = os.path.join(
+    #    os.path.dirname(os.path.abspath(__file__ )), "cacerts.txt")
+    CA_CERTS = "/etc/pki/tls/certs/ca-bundle.crt"
 
 # Which headers are hop-by-hop headers by default
 HOP_BY_HOP = ['connection', 'keep-alive', 'proxy-authenticate', 'proxy-authorization', 'te', 'trailers', 'transfer-encoding', 'upgrade']
diff -Nur httplib2-0.11.3.orig/python3/httplib2/__init__.py httplib2-0.11.3/python3/httplib2/__init__.py
--- httplib2-0.11.3.orig/python3/httplib2/__init__.py	2018-03-29 19:28:43.000000000 -0700
+++ httplib2-0.11.3/python3/httplib2/__init__.py	2018-06-10 17:18:19.267025891 -0700
@@ -125,8 +125,9 @@
 HOP_BY_HOP = ['connection', 'keep-alive', 'proxy-authenticate', 'proxy-authorization', 'te', 'trailers', 'transfer-encoding', 'upgrade']
 
 # Default CA certificates file bundled with httplib2.
-CA_CERTS = os.path.join(
-        os.path.dirname(os.path.abspath(__file__ )), "cacerts.txt")
+#CA_CERTS = os.path.join(
+#        os.path.dirname(os.path.abspath(__file__ )), "cacerts.txt")
+CA_CERTS = "/etc/pki/tls/certs/ca-bundle.crt"
 
 # PROTOCOL_TLS is python 3.5.3+. PROTOCOL_SSLv23 is deprecated.
 # Both PROTOCOL_TLS and PROTOCOL_SSLv23 are equivalent and means: