diff --git a/pyproject.toml b/pyproject.toml
index 79a770e..ee9c363 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "slcl1butils"
-requires-python = ">=3.7,<3.11"
+requires-python = ">= 3.9"
 description = "Python library to exploit SAR IFREMER L1B products"
 readme.file = "README.md"
 readme.content-type = "text/markdown"
@@ -13,6 +13,7 @@ classifiers = [
     "Programming Language :: Python :: 3",
 ]
 dependencies = [
+    'yaml',
     "xarray",
     "numpy",
     "netCDF4",
@@ -21,8 +22,7 @@ dependencies = [
     "importlib_resources",
     'tqdm',
     "zarr",
-    'fsspec',
-    'yaml'
+    'fsspec'
 ]
 dynamic = ["version"]