diff --git a/storages/backends/s3.py b/storages/backends/s3.py
index fa2d39f16..58bced11a 100644
--- a/storages/backends/s3.py
+++ b/storages/backends/s3.py
@@ -45,10 +45,12 @@
 # NOTE: these are defined as functions so both can be tested
 def _use_cryptography_signer():
     # https://cryptography.io as an RSA backend
-    from cryptography.hazmat.backends import default_backend
-    from cryptography.hazmat.primitives import hashes
-    from cryptography.hazmat.primitives.asymmetric import padding
-    from cryptography.hazmat.primitives.serialization import load_pem_private_key
+    from cryptography.hazmat.backends import default_backend  # noqa: PLC0415
+    from cryptography.hazmat.primitives import hashes  # noqa: PLC0415
+    from cryptography.hazmat.primitives.asymmetric import padding  # noqa: PLC0415
+    from cryptography.hazmat.primitives.serialization import (  # noqa: PLC0415
+        load_pem_private_key,
+    )
 
     def _cloud_front_signer_from_pem(key_id, pem):
         if isinstance(pem, str):
@@ -64,7 +66,7 @@ def _cloud_front_signer_from_pem(key_id, pem):
 
 def _use_rsa_signer():
     # https://stuvel.eu/rsa as an RSA backend
-    import rsa
+    import rsa  # noqa: PLC0415
 
     def _cloud_front_signer_from_pem(key_id, pem):
         if isinstance(pem, str):
diff --git a/tests/test_utils.py b/tests/test_utils.py
index 0895356ed..c1076aca8 100644
--- a/tests/test_utils.py
+++ b/tests/test_utils.py
@@ -189,7 +189,7 @@ def test_with_string_file(self):
     # bytes when encoding with utf-8 vs windows-1252 vs utf-16
 
     def test_with_string_file_specified_encoding(self):
-        content = "\u2122\u20AC\u2030"
+        content = "\u2122\u20ac\u2030"
         file = io.StringIO(content)
         file_wrapped = utils.ReadBytesWrapper(file, encoding="utf-16")
 
@@ -197,7 +197,7 @@ def test_with_string_file_specified_encoding(self):
         self.assertEqual(file_wrapped.read(), content.encode("utf-16"))
 
     def test_with_string_file_detect_encoding(self):
-        content = "\u2122\u20AC\u2030"
+        content = "\u2122\u20ac\u2030"
         with open(
             file=os.path.join(
                 os.path.dirname(__file__), "test_files", "windows-1252-encoded.txt"
@@ -214,7 +214,7 @@ def test_with_string_file_detect_encoding(self):
             self.assertEqual(file_wrapped.read(), content.encode("windows-1252"))
 
     def test_with_string_file_fallback_encoding(self):
-        content = "\u2122\u20AC\u2030"
+        content = "\u2122\u20ac\u2030"
         file = io.StringIO(content)
         file_wrapped = utils.ReadBytesWrapper(file)