diff --git a/pyproject.toml b/pyproject.toml
index d2a4e88c..8aa4c3ea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -70,7 +70,7 @@ mss = "mss.__main__:main"
 
 [project.optional-dependencies]
 dev = [
-  "build==1.5.1",
+  "build==1.5.0",
   "lxml==6.1.1",
   "mypy==2.3.0",
   "ruff==0.15.22",