diff --git a/pyproject.toml b/pyproject.toml
index 669d029..ee7fc2a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -49,7 +49,7 @@ test = [
     "pytest==8.3.4",
     "pytest-cov==6.0.0",
     "coverage[toml]==7.6.1",
-    "diff-cover[toml]==9.2.0",
+    "diff-cover[toml]==9.2.1",
 ]
 alembic = ["alembic~=1.12"]