diff --git a/contrib/hg-ssh b/contrib/hg-ssh
--- a/contrib/hg-ssh
+++ b/contrib/hg-ssh
@@ -64,7 +64,7 @@ def main():
             if readonly:
                 cmd += [
                     '--config',
-                    'hooks.prechangegroup.hg-ssh=python:__main__.rejectpush',
+                    'hooks.pretxnopen.hg-ssh=python:__main__.rejectpush',
                     '--config',
                     'hooks.prepushkey.hg-ssh=python:__main__.rejectpush'
                     ]
diff --git a/tests/test-ssh.t b/tests/test-ssh.t
--- a/tests/test-ssh.t
+++ b/tests/test-ssh.t
@@ -398,7 +398,7 @@ Test hg-ssh in read-only mode:
   pushing to ssh://user@dummy/*/remote (glob)
   searching for changes
   remote: Permission denied
-  remote: abort: prechangegroup.hg-ssh hook failed
+  remote: abort: pretxnopen.hg-ssh hook failed
   remote: Permission denied
   remote: pushkey-abort: prepushkey.hg-ssh hook failed
   updating 6c0482d977a3 to public failed!