diff --git a/pyproject.toml b/pyproject.toml
index 239de64..a4d9709 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -28,7 +28,7 @@ dev = [
     "coverage==7.6.8",
     "fissix==24.4.24",
     "flake8==7.1.1",
-    "flit==3.10.1",
+    "flit==3.12.0",
     "mypy==1.13.0",
     "packaging==24.2",
     "ufmt==2.8.0",