diff --git a/solo5-elftool.opam b/solo5-elftool.opam
index 6f6eb3a..25d7c95 100644
--- a/solo5-elftool.opam
+++ b/solo5-elftool.opam
@@ -13,7 +13,7 @@ build: [
 ]
 
 depends: [
-  "ocaml" {>= "4.8.0"}
+  "ocaml" {>= "4.08.0"}
   "dune" {>= "2.9"}
   "owee" {>= "0.4"}
   "cstruct" {>= "6.0.0"}