From 3a84a98e7df2a3ea035a31da2fe1231a4c7b72ed Mon Sep 17 00:00:00 2001
From: Tom Augspurger <tom.w.augspurger@gmail.com>
Date: Thu, 4 Oct 2018 09:20:56 -0500
Subject: [PATCH] CI: Pin IPYthon for doc build

---
 ci/travis-36-doc.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ci/travis-36-doc.yaml b/ci/travis-36-doc.yaml
index 50626088d5bc4..8353659e7b9a9 100644
--- a/ci/travis-36-doc.yaml
+++ b/ci/travis-36-doc.yaml
@@ -12,7 +12,7 @@ dependencies:
   - html5lib
   - hypothesis>=3.58.0
   - ipykernel
-  - ipython
+  - ipython==6.5.0
   - ipywidgets
   - lxml
   - matplotlib