diff --git a/pyproject.toml b/pyproject.toml
index 1274d38..3dd2c99 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ dependencies = [
 # Extras used by developers *of* gbulb are pinned to specific versions to
 # ensure environment consistency.
 dev = [
-    "coverage[toml] == 7.5.2",
+    "coverage[toml] == 7.5.3",
     # Pre-commit 3.6.0 deprecated support for Python 3.8
     "pre-commit == 3.5.0 ; python_version < '3.9'",
     "pre-commit == 3.7.1 ; python_version >= '3.9'",