diff --git a/.flake8 b/.flake8
index 70ad5311ae..fd21ff8d7e 100644
--- a/.flake8
+++ b/.flake8
@@ -15,6 +15,9 @@ ignore =
     # B028: Consider replacing f"'{foo}'" with f"{foo!r}".
     # Currently being disabled by flake8-bugbear. See https://github.com/PyCQA/flake8-bugbear/pull/333
     B028
+    # B042: Exception class with `__init__` should pass all args to `super().__init__()` in order to work with `copy.copy()`.
+    # Affected by false positive, https://github.com/PyCQA/flake8-bugbear/issues/525
+    B042
 exclude =
     .tox,
     .git,
diff --git a/cookbooks/aws-parallelcluster-environment/files/cloudwatch/cloudwatch_agent_config_util.py b/cookbooks/aws-parallelcluster-environment/files/cloudwatch/cloudwatch_agent_config_util.py
index 4598e64a0c..f0c51e652f 100644
--- a/cookbooks/aws-parallelcluster-environment/files/cloudwatch/cloudwatch_agent_config_util.py
+++ b/cookbooks/aws-parallelcluster-environment/files/cloudwatch/cloudwatch_agent_config_util.py
@@ -97,8 +97,8 @@ def _validate_timestamp_keys(input_json):
         if log_config.get("timestamp_format_key") not in valid_keys:
             _fail(
                 f"Log config with log_stream_name {log_config.get('log_stream_name')} and "
-                f"file_path {log_config.get('file_path'),} contains an invalid timestamp_format_key: "
-                f"{log_config.get('timestamp_format_key')}. Valid values are {', '.join(valid_keys),}"
+                f"file_path {log_config.get('file_path'), } contains an invalid timestamp_format_key: "
+                f"{log_config.get('timestamp_format_key')}. Valid values are {', '.join(valid_keys), }"
             )
 
 
diff --git a/cookbooks/aws-parallelcluster-slurm/files/default/head_node_slurm/slurm/config_renderer.py b/cookbooks/aws-parallelcluster-slurm/files/default/head_node_slurm/slurm/config_renderer.py
index f580a74be7..3f4110289f 100644
--- a/cookbooks/aws-parallelcluster-slurm/files/default/head_node_slurm/slurm/config_renderer.py
+++ b/cookbooks/aws-parallelcluster-slurm/files/default/head_node_slurm/slurm/config_renderer.py
@@ -80,7 +80,7 @@ def _definitions(self, dynamic=False):
         definitions += f" Weight={self.dynamic_node_priority if dynamic else self.static_node_priority}"
 
         if self.has_gpu and self.gpu_count > 0:
-            definitions += f" Gres=gpu:{ self.gpu_type }:{self.gpu_count}"
+            definitions += f" Gres=gpu:{self.gpu_type}:{self.gpu_count}"
 
         return definitions