--- seamonkey-2.53.15b1/build/moz.configure/init.configure
+++ seamonkey-2.53.15b1/build/moz.configure/init.configure
@@ -332,21 +332,16 @@
             python = ensure_text(python)
 
     if not python:
         raise FatalCheckError(
             'Python 2.7 is required to build. Ensure a `python2.7` executable '
             'is in your PATH or define PYTHON to point to a Python 2.7 '
             'executable.')
 
-    if version < (2, 7, 0):
-        raise FatalCheckError(
-            'Python 2.7 is required to build; '
-            '%s is Python %d.%d' % (python, version[0], version[1]))
-
     log.debug("python2: found executable: %r" % python)
 
     if not manager.up_to_date(python):
         log.info('Creating Python 2 environment')
         manager.build(python)
     else:
         log.debug("python2: venv is up to date")