diff --git a/dcos/jsonitem.py b/dcos/jsonitem.py
index 08fcf7b..70c9322 100644
--- a/dcos/jsonitem.py
+++ b/dcos/jsonitem.py
@@ -223,7 +223,7 @@ def _parse_boolean(value):
     """
 
     try:
-        boolean = json.loads(value)
+        boolean = json.loads(value.lower())
         if boolean is None or isinstance(boolean, bool):
             return boolean
         else:
diff --git a/tests/test_jsonitem.py b/tests/test_jsonitem.py
index f873d9e..94eba7a 100644
--- a/tests/test_jsonitem.py
+++ b/tests/test_jsonitem.py
@@ -80,6 +80,9 @@ def bad_url(request):
     ('integer', '42', 42),
     ('integer', 'null', None),
     ('boolean', 'true', True),
+    ('boolean', 'True', True),
+    ('boolean', 'FaLsE', False),
+    ('boolean', 'false', False),
     ('boolean', 'null', None),
     ('array', '[1,2,3]', [1, 2, 3]),
     ('array', 'null', None),