diff --git a/git_rebase_rtd_branches.sh b/git_rebase_rtd_branches.sh
index f8456e9..274b37e 100755
--- a/git_rebase_rtd_branches.sh
+++ b/git_rebase_rtd_branches.sh
@@ -10,9 +10,7 @@ git push origin HEAD:%(refname:lstrip=3) --force
 
 eval "$(git for-each-ref --shell --format="$fmt" \
     refs/remotes/origin/breadcrumbs \
-    refs/remotes/origin/sphinx3 \
-    refs/remotes/origin/sphinx4 \
-    refs/remotes/origin/sphinx5 \
+    refs/remotes/origin/sphinx? \
     refs/remotes/origin/readthedocs-sphinx-search \
     refs/remotes/origin/rightsidebar \
     )"