diff --git a/arkindex/users/tests/test_jobs.py b/arkindex/users/tests/test_jobs.py
index ad20177b79245b7bf63f982086b6c61efddd2540..4aa6c4aeea196d635245780b86acb3164955f7a5 100644
--- a/arkindex/users/tests/test_jobs.py
+++ b/arkindex/users/tests/test_jobs.py
@@ -32,7 +32,7 @@ class MockedJob:
 
     @classmethod
     def key_for(cls, id):
-        return f"rq:job:{id}".encode("utf-8")
+        return f"rq:job:{id}".encode()
 
 
 class TestJobs(FixtureAPITestCase):
diff --git a/ruff.toml b/ruff.toml
index 066da2b9e241ee408729812c7b7b1f7a0e4a008d..bbd5b4c3417902d9ce1967aca0af2577b31aab71 100644
--- a/ruff.toml
+++ b/ruff.toml
@@ -27,6 +27,8 @@ select = [
     "ERA",
     # useless-object-inheritance
     "UP004",
+    # unnecessary-encode-utf8
+    "UP012",
 ]
 ignore = ["E501", "RET502", "RET503"]