diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 091f2f9..1d4ecb4 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -20,14 +20,14 @@ repos:
     - id: trailing-whitespace
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
-    rev: v0.12.8
+    rev: v0.15.0
     hooks:
     - id: ruff
       args: [--fix]
     - id: ruff-format
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v1.17.1
+    rev: v1.19.1
     hooks:
     - id: mypy
       additional_dependencies: [markdown-it-py~=3.0]
diff --git a/mdit_py_plugins/dollarmath/index.py b/mdit_py_plugins/dollarmath/index.py
index 32039ad..57ba590 100644
--- a/mdit_py_plugins/dollarmath/index.py
+++ b/mdit_py_plugins/dollarmath/index.py
@@ -78,7 +78,9 @@ def dollarmath_plugin(
     _label_renderer: Callable[[str], str]
     if label_renderer is None:
         _label_renderer = (  # noqa: E731
-            lambda label: f'<a href="#{label}" class="mathlabel" title="Permalink to this equation">¶</a>'
+            lambda label: (
+                f'<a href="#{label}" class="mathlabel" title="Permalink to this equation">¶</a>'
+            )
         )
     else:
         _label_renderer = label_renderer