diff --git a/.travis.yml b/.travis.yml
index 56ea8d8..18dd164 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,8 +12,8 @@ env:
 
 before_script:
   - set -e
-  - wget https://github.com/ocaml/opam/releases/download/2.0.4/opam-2.0.4-x86_64-linux
-  - sudo mv opam-2.0.4-x86_64-linux /usr/local/bin/opam
+  - wget https://github.com/ocaml/opam/releases/download/2.0.5/opam-2.0.5-x86_64-linux
+  - sudo mv opam-2.0.5-x86_64-linux /usr/local/bin/opam
   - sudo chmod a+x /usr/local/bin/opam
   - opam init -y --bare --disable-sandboxing --disable-shell-hook
   - "opam switch create . $COMPILER $REPOSITORIES --no-install"
@@ -25,6 +25,7 @@ before_script:
 
 script:
   - make
+  - opam lint
 
 notifications:
   email: