diff --git a/.travis.yml b/.travis.yml
index 5128368..f649cd4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,16 +8,18 @@ cache:
     - /home/travis/docker/
 
 env:
+  matrix:
   - VIM_VERSION="7.4" PYTHON_IMAGE=2.7-stretch TAG=vim_74_py2 DOCKER_CACHE_FILE=/home/travis/docker/vim_74_py2.tar.gz
   - VIM_VERSION="8.0" PYTHON_IMAGE=2.7-stretch TAG=vim_80_py2 DOCKER_CACHE_FILE=/home/travis/docker/vim_80_py2.tar.gz
   - VIM_VERSION="git" PYTHON_IMAGE=2.7-stretch TAG=vim_git_py2 DOCKER_CACHE_FILE=/home/travis/docker/vim_git_py2.tar.gz
   - VIM_VERSION="7.4" PYTHON_IMAGE=3.6-stretch TAG=vim_74_py3 DOCKER_CACHE_FILE=/home/travis/docker/vim_74_py3.tar.gz
   - VIM_VERSION="8.0" PYTHON_IMAGE=3.6-stretch TAG=vim_80_py3 DOCKER_CACHE_FILE=/home/travis/docker/vim_80_py3.tar.gz
   - VIM_VERSION="git" PYTHON_IMAGE=3.6-stretch TAG=vim_git_py3 DOCKER_CACHE_FILE=/home/travis/docker/vim_git_py3.tar.gz
-
+  global:
+    secure: PFU1Md8NuN6SQNjx6SsHX7icS9Tacb0xS0Ue9SHll1U7FNdI90F/gnokR6v+j7sdvoiLkwRSwUXeYUmrZS/d9qq8yiRxuqcj/Y0TfHVKqcLXXV/m9xWAN2UKRVF7Z1neerznk52Roo3IRqwgd9U+6d3bTthHKKYg4azBqTM7AFE=
 before_install: docker/load_docker_cache.sh
 install:
-   - docker build -t ultisnips:${TAG} --build-arg PYTHON_IMAGE=${PYTHON_IMAGE} --build-arg VIM_VERSION=${VIM_VERSION} .
+   - docker build -t ultisnips:${TAG} --build-arg PYTHON_IMAGE=${PYTHON_IMAGE} --build-arg VIM_VERSION=${VIM_VERSION} --build-arg GITHUB_ACCESS_TOKEN=${GITHUB_ACCESS_TOKEN} .
 
 script:
    - docker run -it ultisnips:${TAG} docker/run_tests.sh
diff --git a/Dockerfile b/Dockerfile
index 789aee3..91ae29e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,6 +3,7 @@ ARG PYTHON_IMAGE
 FROM python:${PYTHON_IMAGE}
 
 ARG VIM_VERSION
+ARG GITHUB_ACCESS_TOKEN
 
 COPY docker/install_packages.sh src/scripts/
 RUN src/scripts/install_packages.sh
@@ -16,11 +17,11 @@ RUN src/scripts/build_vim.sh
 # the cache.
 RUN mkdir -p /tmp/UltiSnips_test_vim_plugins
 
-ADD https://api.github.com/repos/tpope/vim-pathogen/git/refs/heads/master \
+ADD https://api.github.com/repos/tpope/vim-pathogen/git/refs/heads/master?access_token=$GITHUB_ACCESS_TOKEN \
     /src/scripts/vim-pathogen_version.json
 RUN git clone --recursive --depth 1 https://github.com/tpope/vim-pathogen /tmp/UltiSnips_test_vim_plugins/vim-pathogen
 
-ADD https://api.github.com/repos/ervandew/supertab/git/refs/heads/master \
+ADD https://api.github.com/repos/ervandew/supertab/git/refs/heads/master?access_token=$GITHUB_ACCESS_TOKEN \
     /src/scripts/supertab_version.json
 RUN git clone --recursive --depth 1 https://github.com/ervandew/supertab /tmp/UltiSnips_test_vim_plugins/supertab
 
@@ -28,7 +29,7 @@ RUN git clone --recursive --depth 1 https://github.com/ervandew/supertab /tmp/Ul
 # install the latest version through pip. But we still use GitHub activity as a
 # marker to invalidate the installation step, just to make sure we occasionally
 # reinstall a new version.
-ADD https://api.github.com/repos/avian2/unidecode/git/refs/heads/master \
+ADD https://api.github.com/repos/avian2/unidecode/git/refs/heads/master?access_token=$GITHUB_ACCESS_TOKEN \
     /src/scripts/unidecode_version.json
 RUN pip install unidecode