diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index fa56fe8d..dce88cec 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -6,12 +6,12 @@ repos:
         exclude: src/furo/theme/.*|docs/(recommendations|reference/admonitions).md
 
   - repo: https://github.com/psf/black
-    rev: 24.4.2
+    rev: 24.10.0
     hooks:
       - id: black
 
   - repo: https://github.com/asottile/blacken-docs
-    rev: 1.18.0
+    rev: 1.19.1
     hooks:
       - id: blacken-docs
 
@@ -22,7 +22,7 @@ repos:
         files: \.py$
 
   - repo: https://github.com/pre-commit/pre-commit-hooks
-    rev: v4.6.0
+    rev: v5.0.0
     hooks:
       - id: check-builtin-literals
       - id: check-added-large-files
@@ -36,7 +36,7 @@ repos:
 
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.5.5
+    rev: v0.8.4
     hooks:
       - id: ruff
         args: [--fix, --exit-non-zero-on-fix]
diff --git a/src/furo/assets/styles/variables/_spacing.scss b/src/furo/assets/styles/variables/_spacing.scss
index 263fc8b0..12c089e7 100644
--- a/src/furo/assets/styles/variables/_spacing.scss
+++ b/src/furo/assets/styles/variables/_spacing.scss
@@ -6,7 +6,8 @@
 @mixin spacing {
   // Header!
   --header-height: calc(
-    var(--sidebar-item-line-height) + 4 * #{var(--sidebar-item-spacing-vertical)}
+    var(--sidebar-item-line-height) + 4 *
+      #{var(--sidebar-item-spacing-vertical)}
   );
   --header-padding: 0.5rem;