diff --git a/requirements.txt b/requirements.txt
index 725e139..2dd1724 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@
 numpy==1.25.2
 pytest==7.4.0
 pytest-cov==4.1.0
-ruff==0.0.282
+ruff==0.0.287
diff --git a/src/parameterize_jobs/parameterize_jobs.py b/src/parameterize_jobs/parameterize_jobs.py
index a513ef7..d9868d7 100644
--- a/src/parameterize_jobs/parameterize_jobs.py
+++ b/src/parameterize_jobs/parameterize_jobs.py
@@ -130,8 +130,7 @@ def __mul__(self, other):
 
     def __iter__(self):
         for c in self._components:
-            for s in c:
-                yield s
+            yield from c
 
     def __len__(self):
         return sum([len(c) for c in self._components])