diff --git a/src/jobflow/core/job.py b/src/jobflow/core/job.py
index d00501b2..5daa0752 100644
--- a/src/jobflow/core/job.py
+++ b/src/jobflow/core/job.py
@@ -186,6 +186,7 @@ def job(
     """
 
     def decorator(func):
+        from copy import deepcopy
         from functools import wraps
 
         # unwrap staticmethod or classmethod decorators
@@ -214,7 +215,10 @@ def get_job(*args, **kwargs) -> Job:
                         args = args[1:]
 
             return Job(
-                function=f, function_args=args, function_kwargs=kwargs, **job_kwargs
+                function=f,
+                function_args=args,
+                function_kwargs=kwargs,
+                **deepcopy(job_kwargs),
             )
 
         get_job.original = func
diff --git a/tests/core/test_job.py b/tests/core/test_job.py
index f9416221..50c5e94f 100644
--- a/tests/core/test_job.py
+++ b/tests/core/test_job.py
@@ -1421,10 +1421,6 @@ def test_job_magic_methods():
     assert hash(job1) != hash(job2) != hash(job3)
 
 
-@pytest.mark.xfail(
-    reason="Mutating one job's config mutates all others created by that decorator.",
-    strict=True,
-)
 def test_job_decorator_config_shared():
     from jobflow import JobConfig, job