diff --git a/.travis.yml b/.travis.yml
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+#
+# Use nix-emacs-ci for travis CI
+# URL: https://github.com/purcell/nix-emacs-ci
+#
+
+language: nix
+
+os:
+  - linux
+#  - osx
+
+env:
+  - EMACS_CI=emacs-24-2
+  - EMACS_CI=emacs-24-3
+  - EMACS_CI=emacs-24-4
+  - EMACS_CI=emacs-24-5
+  - EMACS_CI=emacs-25-1
+  - EMACS_CI=emacs-25-2
+  - EMACS_CI=emacs-25-3
+  - EMACS_CI=emacs-26-1
+  - EMACS_CI=emacs-26-2
+  - EMACS_CI=emacs-26-3
+  - EMACS_CI=emacs-snapshot
+
+# emacs-24-2 and emacs-24-3 may failure on test
+# just ignore it now.
+matrix:
+  allow_failures:
+    - env: EMACS_CI=emacs-24-2
+    - env: EMACS_CI=emacs-24-3
+    - env: EMACS_CI=emacs-snapshot
+
+# The default "emacs" executable on the $PATH will now be the version named by $EMACS_CI
+install:
+  - bash <(curl https://raw.githubusercontent.com/purcell/nix-emacs-ci/master/travis-install)
+  - export PATH="$HOME/.cask/bin:$PATH"
+  - curl -fsSkL https://raw.github.com/cask/cask/master/go | python
+
+script:
+  - emacs --version
+  - make clean
+  - make
+  - make test
+
+# Local Variables:
+# indent-tabs-mode: nil
+# coding: utf-8
+# End: