diff --git a/docs/conf.py b/docs/conf.py
index e103ed0..46d0901 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -131,6 +131,8 @@
 # -- Options for linkcheck output ---------------------------------------------
 linkcheck_retry = 5
 linkcheck_ignore = ['https://hsthelp.stsci.edu',
+                    'http://ssb.stsci.edu',
+                    'http://www.stsci.edu',
                     'https://www.as.arizona.edu/observing']
 linkcheck_timeout = 180
 linkcheck_anchors = False