diff --git a/providers/imap/pyproject.toml b/providers/imap/pyproject.toml
index 2495a5d7f78f0..2b8fa1f8f586f 100644
--- a/providers/imap/pyproject.toml
+++ b/providers/imap/pyproject.toml
@@ -20,7 +20,7 @@
 # IF YOU WANT TO MODIFY THIS FILE EXCEPT DEPENDENCIES, YOU SHOULD MODIFY THE TEMPLATE
 # `pyproject_TEMPLATE.toml.jinja2` IN the `dev/breeze/src/airflow_breeze/templates` DIRECTORY
 [build-system]
-requires = ["flit_core==3.11.0"]
+requires = ["flit_core==3.12.0"]
 build-backend = "flit_core.buildapi"
 
 [project]