diff --git a/debian/control b/debian/control
index 379a32c..5d5497b 100644
--- a/debian/control
+++ b/debian/control
@@ -10,7 +10,7 @@ Homepage: https://pypi.python.org/pypi/jplephem/
 
 Package: python3-jplephem
 Architecture: all
-Depends: ${python3:Depends}, ${misc:Depends}
+Depends: python3-numpy, ${python3:Depends}, ${misc:Depends}
 Description:  Python version of NASA DE4xx ephemerides
  This package can load and use a Jet Propulsion Laboratory (JPL)
  ephemeris for predicting the position and velocity of a planet