diff --git a/setup.py b/setup.py
index 4764f9cf..eacf31ff 100755
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 from setuptools.command.test import test as TestCommand
 import glob
 
-__version__ = '1.5.3'
+__version__ = '1.5.4'
 
 
 class PyTest(TestCommand):
diff --git a/warcio/recordloader.py b/warcio/recordloader.py
index 419d30f3..7fa751f6 100644
--- a/warcio/recordloader.py
+++ b/warcio/recordloader.py
@@ -47,7 +47,7 @@ def __init__(self, reason):
 
 #=================================================================
 class ArcWarcRecordLoader(object):
-    WARC_TYPES = ['WARC/1.0', 'WARC/0.17', 'WARC/0.18']
+    WARC_TYPES = ['WARC/1.1', 'WARC/1.0', 'WARC/0.17', 'WARC/0.18']
 
     HTTP_TYPES = ['HTTP/1.0', 'HTTP/1.1']