diff --git a/httpx/_utils.py b/httpx/_utils.py
index 2568fdca1c..a3a045da05 100644
--- a/httpx/_utils.py
+++ b/httpx/_utils.py
@@ -464,7 +464,7 @@ def __eq__(self, other: typing.Any) -> bool:
 def is_ipv4_hostname(hostname: str) -> bool:
     try:
         ipaddress.IPv4Address(hostname.split("/")[0])
-    except:
+    except Exception:
         return False
     return True
 
@@ -472,6 +472,6 @@ def is_ipv4_hostname(hostname: str) -> bool:
 def is_ipv6_hostname(hostname: str) -> bool:
     try:
         ipaddress.IPv6Address(hostname.split("/")[0])
-    except:
+    except Exception:
         return False
     return True
diff --git a/scripts/check b/scripts/check
index 1ac6b99072..3b41a9a8b2 100755
--- a/scripts/check
+++ b/scripts/check
@@ -11,4 +11,4 @@ set -x
 ./scripts/sync-version
 ${PREFIX}black --check --diff --target-version=py37 $SOURCE_FILES
 ${PREFIX}mypy $SOURCE_FILES
-${PREFIX}ruff check --diff $SOURCE_FILES
+${PREFIX}ruff check $SOURCE_FILES