diff --git a/packages/py-quantities-scidash/package.py b/packages/py-quantities-scidash/package.py
index b92484b777637b00e84300ccb31b16fc960ce4e0..3612992de5e38079c37272a2b586f5d9e6d911b7 100644
--- a/packages/py-quantities-scidash/package.py
+++ b/packages/py-quantities-scidash/package.py
@@ -16,4 +16,5 @@ class PyQuantitiesScidash(PythonPackage):
 
     version('0.12.4.3', sha256='c281383b989ae19bfe1526c09e452c82880b633a735f9494d8bb469412a33ea2')
 
-    depends_on('python@3.6.9:')
\ No newline at end of file
+    depends_on('python@3.6.9:')
+    depends_on('numpy@1.19:')