diff --git a/.travis.yml b/.travis.yml
index 6fdb5b5..348297e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,8 +6,9 @@ install: wget https://raw.githubusercontent.com/ocaml/ocaml-travisci-skeleton/ma
 script: bash -ex ./.travis-docker.sh
 env:
   matrix:
-  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.03.0"
-  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04.2"
-  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.05.0" DEPOPTS="mirage-xen-posix"
-  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06.0" DEPOPTS="ocaml-freestanding"
-  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06.0" DEPOPTS="ocaml-freestanding"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.03"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.05" DEPOPTS="mirage-xen-posix"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06" DEPOPTS="ocaml-freestanding"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.06" DEPOPTS="ocaml-freestanding"
+  - PACKAGE="bigstringaf" DISTRO="ubuntu-16.04" OCAML_VERSION="4.07" DEPOPTS="ocaml-freestanding"