diff --git a/pyproject.toml b/pyproject.toml
index 3c41166..13cddf0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,7 +25,7 @@ dependencies = [
 [project.optional-dependencies]
 dev = [
     "black==26.5.1",
-    "build==1.4.4",
+    "build==1.5.0",
     "mypy==1.19.1",
     "pytest==9.0.3",
     "pytest-cov==7.1.0",