diff --git a/opam b/opam
index ea44830afe14223fca69264c3d71383126bd61e1..bb91590c641931f158991ed81188c5b7d746755b 100644
--- a/opam
+++ b/opam
@@ -13,7 +13,7 @@ build: [
 install: [make "install"]
 remove: [ "sh" "-c" "rm -rf '%{lib}%/coq/user-contrib/iris'" ]
 depends: [
-  "coq" { ((>= "8.6" & < "8.7~") | (= "dev"))}
-  "coq-mathcomp-ssreflect" { ((>= "1.6.1" & < "1.7~") | (= "dev"))}
+  "coq" { (>= "8.6" & < "8.7~") } # replace with (= "dev") if you want to test against a development version of Coq
+  "coq-mathcomp-ssreflect" { ((>= "1.6.1" & < "1.7~") | (= "dev")) }
   "coq-stdpp"
 ]