diff --git a/ua_parser/user_agent_parser.py b/ua_parser/user_agent_parser.py
index 45f5a063..e6d089e0 100644
--- a/ua_parser/user_agent_parser.py
+++ b/ua_parser/user_agent_parser.py
@@ -477,7 +477,7 @@ def GetFilters(
     except ImportError:
         from yaml import SafeLoader
 
-    with open(UA_PARSER_YAML) as fp:
+    with open(UA_PARSER_YAML, 'rb') as fp:
         regexes = yaml.load(fp, Loader=SafeLoader)
 
     USER_AGENT_PARSERS = []