lower depends on postgresql to suggests

debian/control

@@ -7,8 +7,8 @@ Standards-Version: 3.5.6.0
 
 Package: katie
 Architecture: any
-Depends: ${python:Depends}, python-pygresql, python-zlib, python-apt, apt-utils, gnupg (>= 1.0.6-1), postgresql (>= 7.1.0), ${shlibs:Depends}
-Suggests: lintian, binutils-multiarch, symlinks
+Depends: ${python:Depends}, python-pygresql, python-zlib, python-apt, apt-utils, gnupg (>= 1.0.6-1), ${shlibs:Depends}
+Suggests: lintian, binutils-multiarch, symlinks, postgresql (>= 7.1.0)
 Description: Debian's archive maintenance scripts
  This is a collection of archive maintenance scripts used by the
  Debian project.