diff --git a/examples/feedstock/gpcp_from_gcs.py b/examples/feedstock/gpcp_from_gcs.py
index a29da23b..9b13d59d 100644
--- a/examples/feedstock/gpcp_from_gcs.py
+++ b/examples/feedstock/gpcp_from_gcs.py
@@ -30,7 +30,7 @@ def test_ds(store: zarr.storage.FSStore) -> zarr.storage.FSStore:
         "Global Precipitation Climatatology Project (GPCP) " "Climate Data Record (CDR), Daily V1.3"
     )
     # Making sure that the native chunking is different from the dynamic chunking
-    assert ds.chunks['time'][0] == 1 
+    assert ds.chunks["time"][0] == 1
 
     return store
 
diff --git a/examples/feedstock/gpcp_from_gcs_dynamic_chunks.py b/examples/feedstock/gpcp_from_gcs_dynamic_chunks.py
index 99c96613..bc9c3fd0 100644
--- a/examples/feedstock/gpcp_from_gcs_dynamic_chunks.py
+++ b/examples/feedstock/gpcp_from_gcs_dynamic_chunks.py
@@ -33,7 +33,7 @@ def test_ds(store: zarr.storage.FSStore) -> zarr.storage.FSStore:
         "Global Precipitation Climatatology Project (GPCP) " "Climate Data Record (CDR), Daily V1.3"
     )
 
-    assert ds.chunks['time'][0] == 2
+    assert ds.chunks["time"][0] == 2
     return store