constrain version of omd

Author: avsm

opam2web.opam

@@ -22,7 +22,7 @@ depends: [
   "yojson" {>= "1.6.0"}
   "opam-file-format" {< "2.1.1"}
   "cmdliner" {>= "1.0.4"}
-  "omd" {>= "1.3.1"}
+  "omd" {>= "1.3.1" & < "2.0.0~~"}
 ]
 build: [
 #  ["dune" "subst"] {pinned}