diff --git a/perf-postprocess.py b/perf-postprocess.py
index aa66b96..a4a996f 100644
--- a/perf-postprocess.py
+++ b/perf-postprocess.py
@@ -552,9 +552,11 @@ def extract_dataframe(perf_data_lines, meta_data, perf_mode):
 
     # fix metric name X.1, X.2, etc -> just X
     perf_data_df["metric"] = perf_data_df.apply(
-        lambda x: ".".join(x["metric"].split(".")[:-1])
-        if len(re.findall(r"^[0-9]*$", x["metric"].split(".")[-1])) > 0
-        else x["metric"],
+        lambda x: (
+            ".".join(x["metric"].split(".")[:-1])
+            if len(re.findall(r"^[0-9]*$", x["metric"].split(".")[-1])) > 0
+            else x["metric"]
+        ),
         axis=1,
     )
 
@@ -1026,9 +1028,7 @@ def generate_metrics(
         + (
             "System"
             if perf_mode == Mode.System
-            else "CPU"
-            if perf_mode == Mode.CPU
-            else "Socket"
+            else "CPU" if perf_mode == Mode.CPU else "Socket"
         )
         + " mode"
     )
diff --git a/requirements.txt b/requirements.txt
index 790b011..1b4aa88 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-black==22.8.0
+black==24.8.0
 flake8
 pytype
 simpleeval
diff --git a/src/perf_helpers.py b/src/perf_helpers.py
index 69cc2a0..19e0638 100644
--- a/src/perf_helpers.py
+++ b/src/perf_helpers.py
@@ -148,7 +148,7 @@ def nmi_watchdog_enabled():
         return None
     try:
         nmi_watchdog_status = int(proc_output.decode().strip())
-    except (ValueError) as e:
+    except ValueError as e:
         logging.warning(f"Failed to interpret nmi_watchdog status: {e}")
         return None
     return nmi_watchdog_status == 1