diff --git a/setup.py b/setup.py
index 9940b17..e7755cd 100644
--- a/setup.py
+++ b/setup.py
@@ -6,7 +6,7 @@
     long_description = f.read()
 
 about = {}
-with open(os.path.join(base_dir, 'nso_jsonrpc_requester', 'version.py'), 'r', 'utf-8') as f:
+with open(os.path.join(base_dir, 'nso_jsonrpc_requester', 'version.py'), 'r', encoding='utf-8') as f:
     exec(f.read(), about)
 
 packages = [