diff --git a/core/pyproject.toml b/core/pyproject.toml
index 17c66dd750..920399eb16 100644
--- a/core/pyproject.toml
+++ b/core/pyproject.toml
@@ -65,7 +65,7 @@ dependencies = [
 # Extras used by developers *of* Toga are pinned to specific versions to
 # ensure environment consistency.
 dev = [
-    "coverage[toml] == 7.6.2",
+    "coverage[toml] == 7.6.3",
     "coverage-conditional-plugin == 0.9.0",
     "Pillow == 11.0.0",
     "pre-commit == 4.0.1",