diff --git a/README.md b/README.md
index 61aa609469654a57d3b5f1a0c9e1631cad094085..e23ab1b10d1d5ba7c77495cc476db02a87c38ff5 100644
--- a/README.md
+++ b/README.md
@@ -42,8 +42,8 @@ This version is known to compile with:
 
 ## Installing via opam
 
-To obtain the latest stable release via opam, you have to add the Coq opam
-repository:
+To obtain the latest stable release via opam (1.2.2 or newer), you have to add
+the Coq opam repository:
 
     opam repo add coq-released https://coq.inria.fr/opam/released