diff --git a/rietveld.py b/rietveld.py
index ec5d781446..1c569fc9bb 100644
--- a/rietveld.py
+++ b/rietveld.py
@@ -89,7 +89,7 @@ class Rietveld(object):
     url = '/%d/patchset/%d/get_depends_on_patchset' % (issue, patchset)
     resp = None
     try:
-      resp = json.loads(self.get(url))
+      resp = json.loads(self.post(url, []))
     except (urllib2.HTTPError, ValueError):
       # The get_depends_on_patchset endpoint does not exist on this Rietveld
       # instance yet. Ignore the error and proceed.