diff --git a/.travis.yml b/.travis.yml
index 97ae27ce..c1d6b924 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,12 +1,12 @@
 language: c
 sudo: required
-install: wget https://raw.githubusercontent.com/ocaml/ocaml-ci-scripts/master/.travis-opam.sh
+install: test -e .travis.opam.sh || wget https://raw.githubusercontent.com/ocaml/ocaml-ci-scripts/master/.travis-opam.sh
 script: bash -ex .travis-opam.sh
 env:
   global:
   - PACKAGE=sedlex
   matrix:
-  - OCAML_VERSION=4.02 OCAML_SWITCH=4.02.3
+  - OCAML_VERSION=4.02
   - OCAML_VERSION=4.03
   - OCAML_VERSION=4.04
   - OCAML_VERSION=4.05