diff --git a/pyproject.toml b/pyproject.toml
index 682c83fe..31eaee75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ astropy = [
     'astropy>=5.0.0',
 ]
 publish = [
-    'flit==3.10.1',
+    'flit==3.12.0',
 ]
 
 [project.urls]