diff --git a/src/escpos/capabilities.py b/src/escpos/capabilities.py
index 9272c01..0cf76e1 100644
--- a/src/escpos/capabilities.py
+++ b/src/escpos/capabilities.py
@@ -8,12 +8,13 @@ import six
 import yaml
 
 from tempfile import gettempdir
+import platform
 
 logging.basicConfig()
 logger = logging.getLogger(__name__)
 
 pickle_dir = environ.get('ESCPOS_CAPABILITIES_PICKLE_DIR', gettempdir())
-pickle_path = path.join(pickle_dir, 'capabilities.pickle')
+pickle_path = path.join(pickle_dir, '{v}.capabilities.pickle'.format(v=platform.python_version()))
 capabilities_path = environ.get(
     'ESCPOS_CAPABILITIES_FILE',
     path.join(path.dirname(__file__), 'capabilities.json'))