diff --git a/dune b/dune
index 0f95c3a97..1a22f2d2a 100644
--- a/dune
+++ b/dune
@@ -3,7 +3,7 @@
 (rule
  (targets VERSION)
  (action (with-stdout-to %{targets}
-           (run opam show ./%{dep:./learn-ocaml.opam} -f version --normalise)))
+           (run opam show --color=never ./%{dep:./learn-ocaml.opam} -f version --normalise)))
 )
 
 (env