diff -ruN a/python2/httplib2/__init__.py b/python2/httplib2/__init__.py
--- a/python2/httplib2/__init__.py	2013-03-06 21:45:31.000000000 +0100
+++ b/python2/httplib2/__init__.py	2013-03-22 14:02:09.458410128 +0100
@@ -184,15 +184,8 @@
 # requesting that URI again.
 DEFAULT_MAX_REDIRECTS = 5
 
-try:
-    # Users can optionally provide a module that tells us where the CA_CERTS
-    # are located.
-    import ca_certs_locater
-    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")
+# Default CA certificates file bundled with httplib2.
+CA_CERTS = '/etc/ssl/ca-bundle.pem'
 
 # 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 -ruN a/python3/httplib2/__init__.py b/python3/httplib2/__init__.py
--- a/python3/httplib2/__init__.py	2013-03-06 21:45:31.000000000 +0100
+++ b/python3/httplib2/__init__.py	2013-03-22 14:01:51.270409717 +0100
@@ -124,8 +124,8 @@
 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 = '/etc/ssl/ca-bundle.pem'
+        
 
 def _get_end2end_headers(response):
     hopbyhop = list(HOP_BY_HOP)
diff -ruN a/setup.py b/setup.py
--- a/setup.py	2013-03-06 21:45:31.000000000 +0100
+++ b/setup.py	2013-03-22 14:02:33.031410660 +0100
@@ -62,7 +62,6 @@
         """,
         package_dir=pkgdir,
         packages=['httplib2'],
-        package_data={'httplib2': ['*.txt']},
         classifiers=[
         'Development Status :: 4 - Beta',
         'Environment :: Web Environment',