diff --git a/packages/opam-graph/opam-graph.0.1.1/opam b/packages/opam-graph/opam-graph.0.1.1/opam
index d96084cd5ba..46f020dc391 100644
--- a/packages/opam-graph/opam-graph.0.1.1/opam
+++ b/packages/opam-graph/opam-graph.0.1.1/opam
@@ -17,7 +17,7 @@ depends: [
   "opam-core"
   "opam-format" {>= "2.1.1"}
   "ocamldot"
-  "tyxml" {>= "3.0.0"}
+  "tyxml" {>= "4.3.0"}
   "gg"
 ]
 build: [