diff --git a/CHANGES.md b/CHANGES.md
index 69dd57b40a..83423f30cd 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 3.1.0
 
 ### Added
 - Exposed sherlodoc libraries for use in other projects (@jonludlam, #1349)
diff --git a/odoc-driver.opam b/odoc-driver.opam
index 88cf393f6c..477a6beea0 100644
--- a/odoc-driver.opam
+++ b/odoc-driver.opam
@@ -5,7 +5,6 @@ homepage: "https://github.com/ocaml/odoc"
 doc: "https://ocaml.github.io/odoc/"
 bug-reports: "https://github.com/ocaml/odoc/issues"
 license: "ISC"
-flags: [ avoid-version ]
 
 maintainer: [
   "Daniel Bünzli <daniel.buenzli@erratique.ch>"
diff --git a/odoc-md.opam b/odoc-md.opam
index 9711940046..0ebfc20139 100644
--- a/odoc-md.opam
+++ b/odoc-md.opam
@@ -5,7 +5,6 @@ homepage: "https://github.com/ocaml/odoc"
 doc: "https://ocaml.github.io/odoc/"
 bug-reports: "https://github.com/ocaml/odoc/issues"
 license: "ISC"
-flags: [ avoid-version ]
 
 maintainer: [
   "Jon Ludlam <jon@recoil.org>"
@@ -30,6 +29,7 @@ depends: [
   "ocaml" {>= "4.14.0"}
   "odoc" {= version}
   "dune" {>= "3.18.0"}
+  "cmdliner" {>= "1.3.0"}
   "cmarkit"
 ]
 
diff --git a/odoc-parser.opam b/odoc-parser.opam
index b637e5477d..de29feca3c 100644
--- a/odoc-parser.opam
+++ b/odoc-parser.opam
@@ -12,7 +12,6 @@ homepage: "https://github.com/ocaml/odoc"
 bug-reports: "https://github.com/ocaml/odoc/issues"
 dev-repo: "git+https://github.com/ocaml/odoc.git"
 doc: "https://ocaml.github.io/odoc/odoc_parser"
-flags: [ avoid-version ]
 depends: [
   "dune" {>= "3.18"}
   "ocaml" {>= "4.08.0" & < "5.5"}
diff --git a/odoc.opam b/odoc.opam
index e6f1836fba..4538986ebf 100644
--- a/odoc.opam
+++ b/odoc.opam
@@ -5,7 +5,6 @@ homepage: "https://github.com/ocaml/odoc"
 doc: "https://ocaml.github.io/odoc/"
 bug-reports: "https://github.com/ocaml/odoc/issues"
 license: "ISC"
-flags: [ avoid-version ]
 
 maintainer: [
   "Daniel Bünzli <daniel.buenzli@erratique.ch>"
diff --git a/sherlodoc.opam b/sherlodoc.opam
index d014ce8e6a..9026d5664a 100644
--- a/sherlodoc.opam
+++ b/sherlodoc.opam
@@ -7,7 +7,6 @@ license: "MIT"
 homepage: "https://github.com/ocaml/odoc"
 doc: "https://ocaml.github.io/odoc/"
 bug-reports: "https://github.com/ocaml/odoc/issues"
-flags: [ avoid-version ]
 depends: [
   "dune" {>= "3.7"}
   "ocaml" {>= "4.0.8"}