diff --git a/certbot-dns-auth.py b/certbot-dns-auth.py
index 3ca61a1..c57d053 100755
--- a/certbot-dns-auth.py
+++ b/certbot-dns-auth.py
@@ -7,7 +7,7 @@
 """
 
 
-import os, sys
+import os, sys, time
 
 
 def main():
@@ -27,11 +27,14 @@
 	# end if
 
 	dirName = os.path.dirname(os.path.abspath(sys.argv[0]))
-	cmd = dirName + "/update-record.py -c " + dirName + "/conf.cfg" + " -r TXT _acme-challenge." + d + " " + v;
+	cmd = dirName + "/update-record.py -c " + dirName + "/conf.cfg" + " -t 300 -r TXT _acme-challenge." + d + " " + v;
 	os.system(cmd)
+
+	# sleep to make sure the change has time to propagate over to DNS
+	time.sleep(25)
 # end main
 
 
 if __name__ == '__main__':
 	main()
-# end if
\ No newline at end of file
+# end if