diff --git a/Tools/scripts/run_tests.py b/Tools/scripts/run_tests.py
index 9fc37997683..3c1c3bd060b 100644
--- a/Tools/scripts/run_tests.py
+++ b/Tools/scripts/run_tests.py
@@ -30,9 +30,6 @@ def main(regrtest_args):
     # Allow user-specified interpreter options to override our defaults.
     args.extend(test.support.args_from_interpreter_flags())
 
-    # Workaround for issue #20361
-    args.extend(['-W', 'error::BytesWarning'])
-
     args.extend(['-m', 'test',    # Run the test suite
                  '-r',            # Randomize test order
                  '-w',            # Re-run failed tests in verbose mode