diff --git a/mypy/checkexpr.py b/mypy/checkexpr.py
index 8cdc8282a1e5..786d9379db88 100644
--- a/mypy/checkexpr.py
+++ b/mypy/checkexpr.py
@@ -175,7 +175,7 @@
 # Type of callback user for checking individual function arguments. See
 # check_args() below for details.
 ArgChecker: _TypeAlias = Callable[
-    [Type, Type, ArgKind, Type, int, int, CallableType, Optional[Type], Context, Context], None,
+    [Type, Type, ArgKind, Type, int, int, CallableType, Optional[Type], Context, Context], None
 ]
 
 # Maximum nesting level for math union in overloads, setting this to large values
diff --git a/mypy/config_parser.py b/mypy/config_parser.py
index bc9f75f419e1..00823b515fed 100644
--- a/mypy/config_parser.py
+++ b/mypy/config_parser.py
@@ -33,7 +33,13 @@
 from mypy.options import PER_MODULE_OPTIONS, Options
 
 _CONFIG_VALUE_TYPES: _TypeAlias = Union[
-    str, bool, int, float, Dict[str, str], List[str], Tuple[int, int],
+    str,
+    bool,
+    int,
+    float,
+    Dict[str, str],
+    List[str],
+    Tuple[int, int],
 ]
 _INI_PARSER_CALLABLE: _TypeAlias = Callable[[Any], _CONFIG_VALUE_TYPES]
 
diff --git a/mypy/nodes.py b/mypy/nodes.py
index 20236b97fba9..8484e212f9a7 100644
--- a/mypy/nodes.py
+++ b/mypy/nodes.py
@@ -2040,7 +2040,10 @@ class RevealExpr(Expression):
     local_nodes: Optional[List[Var]]
 
     def __init__(
-        self, kind: int, expr: Optional[Expression] = None, local_nodes: Optional[List[Var]] = None
+        self,
+        kind: int,
+        expr: Optional[Expression] = None,
+        local_nodes: Optional[List[Var]] = None,
     ) -> None:
         super().__init__()
         self.expr = expr
diff --git a/mypy/report.py b/mypy/report.py
index 375f63b1d463..e9a83a2819f1 100644
--- a/mypy/report.py
+++ b/mypy/report.py
@@ -45,7 +45,7 @@
 )
 
 ReporterClasses: _TypeAlias = Dict[
-    str, Tuple[Callable[["Reports", str], "AbstractReporter"], bool],
+    str, Tuple[Callable[["Reports", str], "AbstractReporter"], bool]
 ]
 
 reporter_classes: Final[ReporterClasses] = {}
diff --git a/mypy/semanal_main.py b/mypy/semanal_main.py
index 8ecb99344a69..99131366e143 100644
--- a/mypy/semanal_main.py
+++ b/mypy/semanal_main.py
@@ -110,7 +110,10 @@ def cleanup_builtin_scc(state: State) -> None:
 
 
 def semantic_analysis_for_targets(
-    state: State, nodes: List[FineGrainedDeferredNode], graph: Graph, saved_attrs: SavedAttributes
+    state: State,
+    nodes: List[FineGrainedDeferredNode],
+    graph: Graph,
+    saved_attrs: SavedAttributes,
 ) -> None:
     """Semantically analyze only selected nodes in a given module.
 
diff --git a/pyproject.toml b/pyproject.toml
index 95f65599a130..f797b8da7afd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,6 @@ build-backend = "setuptools.build_meta"
 [tool.black]
 line-length = 99
 target-version = ['py37']
-skip-magic-trailing-comma = true
 extend-exclude = '''
 ^/mypy/typeshed|
 ^/mypyc/test-data|