diff --git a/requirements-base.txt b/requirements-base.txt
index 3986857daec5..1ef4a365d57d 100644
--- a/requirements-base.txt
+++ b/requirements-base.txt
@@ -1,3 +1,3 @@
 
 wheel==0.37.1
-flit_core==3.8.0
+flit_core==3.9.0
diff --git a/requirements/bootstrap.txt b/requirements/bootstrap.txt
index f50b4ee361da..6fb9e6ef5031 100644
--- a/requirements/bootstrap.txt
+++ b/requirements/bootstrap.txt
@@ -1,2 +1,2 @@
 pip>=22.0.0,<24.0.0
-flit_core>=3.7.1,<3.8.1
+flit_core>=3.7.1,<3.9.1