diff --git a/setup.py b/setup.py
index 82c8e8ff..d9b47040 100644
--- a/setup.py
+++ b/setup.py
@@ -11,7 +11,7 @@
 defined_macros["CYTHON_CLINE_IN_TRACEBACK"] = 0
 
 # Getting description:
-with open("README.rst") as readme_file:
+with open("README.rst", encoding="utf-8") as readme_file:
     description = readme_file.read()
 
 # Getting requirements: