diff --git a/pyproject.toml b/pyproject.toml
index 2e7ae374..c1a30e76 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ classifiers=[
 ]
 dependencies = [
     "numpy>=1.16",
-    "scipy>=1.0.0",
+    "scipy>=1.4.0",
     "astropy>=2.0",
     "matplotlib>=1.5",