diff --git a/jose.opam b/jose.opam
index dc730d4..9a88c1a 100644
--- a/jose.opam
+++ b/jose.opam
@@ -10,7 +10,7 @@ homepage: "https://ulrikstrid.github.io/reason-jose"
 doc: "https://ulrikstrid.github.io/reason-jose"
 bug-reports: "https://github.com/ulrikstrid/reason-jose/issues"
 depends: [
-  "ocaml" {>= "4.07.0"}
+  "ocaml" {>= "4.08.0"}
   "base64" {>= "3.0.0"}
   "dune" {>= "1.11"}
   "eqaf" {>= "0.7"}