diff --git a/TODO b/TODO
index c62bb33..59a8bbf 100644
--- a/TODO
+++ b/TODO
@@ -3,7 +3,7 @@ TODO: Support pull requests from different repositories
   do something to fetch other remotes if there are pull requests from other
   remotes.
 
-TODO: Wait after the refresh API is hit before querying for changes on GitHub.
+TODO (DONE): Wait after the refresh API is hit before querying for changes on GitHub.
   It seems like it takes a while (probably ~1min is fine) for mergable pull
   requests to show up. (Or investigate why this is happening.) Note: the API
   must return an HTTP response quickly, even though the main refresh action is
diff --git a/server.sml b/server.sml
index 9421cff..0d40532 100644
--- a/server.sml
+++ b/server.sml
@@ -145,8 +145,11 @@ fun abort id =
     else cgi_die 409 ["job ",f," is not stopped: cannot abort"]
   end
 
+val refresh_delay_duration = Time.fromSeconds 30;
+
 fun refresh () =
   let
+    val _ = OS.Process.sleep refresh_delay_duration;
     val snapshots = get_current_snapshots ()
     val fd = acquire_lock ()
     val () = clear_list "waiting"