1 files changed, 3 insertions, 3 deletions
diff --git a/packages/meshbay-hub/tests/test_challenge_signature_client.py b/packages/meshbay-hub/tests/test_challenge_signature_client.py
index e3c33ac..b904698 100644
--- a/packages/meshbay-hub/tests/test_challenge_signature_client.py
+++ b/packages/meshbay-hub/tests/test_challenge_signature_client.py
@@ -93,11 +93,11 @@ def test_the_browser_holds_the_node_to_its_challenge(tmp_path):
         "garbage for a signature": (case(sig=b"\x00" * 64), "refused"),
     }
     harness = tmp_path / "harness.js"
-    harness.write_text(_HARNESS)
+    harness.write_text(_HARNESS, encoding="utf-8")
     payload = tmp_path / "cases.json"
-    payload.write_text(json.dumps([c for c, _ in cases.values()]))
+    payload.write_text(json.dumps([c for c, _ in cases.values()]), encoding="utf-8")
     proc = subprocess.run(["node", str(harness), str(STATIC), str(payload), transport_argv()],
-                          capture_output=True, text=True, timeout=60)
+                          capture_output=True, text=True, encoding="utf-8", timeout=60)
     assert proc.returncode == 0, proc.stderr
     got = dict(zip(cases, json.loads(proc.stdout)))
     assert got == {name: want for name, (_, want) in cases.items()}