diff --git a/.travis.yml b/.travis.yml
index ffc97470c67c..1a7ea9bd0a96 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -13,6 +13,7 @@ addons:
       - texlive-fonts-recommended
       - texlive-latex-recommended
       - graphviz
+      - linkchecker
 #     - fonts-humor-sans
 #    sources:
 #      - debian-sid
@@ -41,8 +42,8 @@ matrix:
       env: PANDAS=pandas
     - python: 2.7
       env: TEST_ARGS=--pep8
-    - python: 2.7
-      env: BUILD_DOCS=true MOCK=mock
+    - python: 3.5
+      env: BUILD_DOCS=true
     - python: "nightly"
       env: PRE=--pre
   allow_failures:
@@ -87,7 +88,6 @@ install:
   - |
     if [[ $BUILD_DOCS == true ]]; then
       pip install $PRE numpydoc ipython jsonschema mistune
-      pip install -q $PRE linkchecker
       wget https://github.com/google/fonts/blob/master/ofl/felipa/Felipa-Regular.ttf?raw=true -O Felipa-Regular.ttf
       wget http://mirrors.kernel.org/ubuntu/pool/universe/f/fonts-humor-sans/fonts-humor-sans_1.0-1_all.deb
       mkdir -p tmp