diff --git a/pyproject.toml b/pyproject.toml
index 353807e..4a93055 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -34,7 +34,8 @@ classifiers = [
 dependencies = [
    'numpy',
    'scipy',
-   'matplotlib'
+   'matplotlib',
+   'silx'
 ]
 [build-system]
 build-backend = 'mesonpy'