diff --git a/pyproject.toml b/pyproject.toml
index be76b35..96a0359 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ Repository = "https://github.com/TI-Toolkit/tivars_lib_py"
 Documentation = "https://ti-toolkit.github.io/tivars_lib_py/"
 
 [project.optional-dependencies]
-images = ["pillow"]
+images = ["pillow", "numpy"]
 arrays = ["numpy"]