diff --git a/enrich_code_scanning_alerts.py b/enrich_code_scanning_alerts.py
index 38f7735..eae7cd9 100755
--- a/enrich_code_scanning_alerts.py
+++ b/enrich_code_scanning_alerts.py
@@ -16,7 +16,6 @@
 from typing import Any
 from pathlib import Path
 from datetime import datetime, timezone
-import time
 from mistletoe import markdown
 import humanize
 from defusedcsv import csv
@@ -60,7 +59,7 @@ def fixup_rule_metadata_codeql(rule_metadata: dict) -> None:
             rule_metadata["security-severity"] = float(
                 rule_metadata["security-severity"]
             )
-        except:
+        except (FloatingPointError, ValueError):
             LOG.warning(
                 "Could not parse security-severity in rule %s as float: %s",
                 rule_metadata.get("id", "unknown ID"),
diff --git a/list_secret_scanning_alerts.py b/list_secret_scanning_alerts.py
index ec1c815..e428cca 100755
--- a/list_secret_scanning_alerts.py
+++ b/list_secret_scanning_alerts.py
@@ -242,14 +242,16 @@ def list_secret_scanning_alerts(
     alerts = decorate_alerts(g, alerts, include_locations=include_locations, include_commit=include_commit)
 
     if raw:
-        return alerts
+        for alert in alerts:
+            yield alert
+        return None
     else:
         for alert in alerts:
             result = make_result(g, alert, scope, name, include_secret=include_secret, include_locations=include_locations, include_commit=include_commit)
             if result is not None:
                 yield result
             else:
-                return
+                return None
 
 
 def add_args(parser: argparse.ArgumentParser) -> None: