diff --git a/requirements.txt b/requirements.txt
index 028c1ac..dd952aa 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-flit>=3.12.0
+flit>=4.0.2
 tox>=4.56.1
 pytest>=9.1.1
 mdformat >=0.7.0