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