1 files changed, 1 insertions, 1 deletions
diff --git a/setup.py b/setup.py
index 68e589c..35005d8 100644
--- a/setup.py
+++ b/setup.py
@@ -25,7 +25,7 @@ all_extensions = cythonize(
     [c_extension, all_extensions],
     nthreads=4,
     compiler_directives={"embedsignature": True,
-        "language_level": 2,
+        "language_level": 3,
         "c_string_type": "unicode",
         "c_string_encoding": "ascii"},
 )