diff --git a/opam/opam-coq-archive/released/packages/coq-relation-algebra/coq-relation-algebra.1.7.10/opam b/opam/opam-coq-archive/released/packages/coq-relation-algebra/coq-relation-algebra.1.7.10/opam
new file mode 100644
index 0000000000..32691de0a8
--- /dev/null
+++ b/opam/opam-coq-archive/released/packages/coq-relation-algebra/coq-relation-algebra.1.7.10/opam
@@ -0,0 +1,47 @@
+opam-version: "2.0"
+synopsis: "Relation Algebra and KAT in Coq"
+name: "coq-relation-algebra"
+maintainer: "Damien Pous <Damien.Pous@ens-lyon.fr>"
+#TO SET BEFORE RELEASE
+version: "dev"
+homepage: "http://perso.ens-lyon.fr/damien.pous/ra/"
+dev-repo: "git+https://github.com/damien-pous/relation-algebra.git"
+bug-reports: "https://github.com/damien-pous/relation-algebra/issues"
+license: "LGPL-3.0-or-later"
+depends: [
+  "ocaml"
+#TO SET BEFORE RELEASE
+  "coq" {>= "8.18"}
+#  "coq" {>= "8.16" & < "8.17~"}
+#TO REMOVE BEFORE RELEASE (TO MAKE THEM OPTIONAL)
+  "coq-mathcomp-ssreflect"
+  "coq-aac-tactics"
+]
+#TO SET BEFORE RELEASE
+# depopts: [ "coq-mathcomp-ssreflect" "coq-aac-tactics" ]
+build: [
+  ["sh" "-exc" "./configure --%{coq-mathcomp-ssreflect:enable}%-ssr --%{coq-aac-tactics:enable}%-aac"]
+  [make "-j%{jobs}%"]
+]
+install: [make "install"]
+tags: [
+  "keyword:relation algebra"
+  "keyword:kleene algebra with tests"
+  "keyword:kat"
+  "keyword:allegories"
+  "keyword:residuated structures"
+  "keyword:automata"
+  "keyword:regular expressions"
+  "keyword:matrices"
+  "category:Mathematics/Algebra" 
+  "logpath:RelationAlgebra" ]
+authors: [
+  "Damien Pous <Damien.Pous@ens-lyon.fr>"
+  "Christian Doczkal <christian.doczkal@ens-lyon.fr>"
+]
+
+url {
+  src: "https://github.com/damien-pous/relation-algebra/archive/refs/tags/v1.7.10.tar.gz"
+  checksum: "sha512=9dd7601db9f25753709d4708ab878782580a7d3a858c0188948a10ea51fcbceddee86e5c42e7ddba2a53f65fcb4ee379b33e9c0996cdcef32b7b419d62e6e04e"
+}
+
diff --git a/package_picks/package-pick-8.18+beta1.sh b/package_picks/package-pick-8.18+beta1.sh
index c857d2fa69..78f5bc0956 100644
--- a/package_picks/package-pick-8.18+beta1.sh
+++ b/package_picks/package-pick-8.18+beta1.sh
@@ -142,7 +142,7 @@ then
   # General mathematics (which requires one of the above tools)
   # PACKAGES="${PACKAGES} coq-mathcomp-analysis.0.6.5" # requires coq-mathcomp-solvable < "1.18~"
   PACKAGES="${PACKAGES} coq-mathcomp-algebra-tactics.1.2.1"
-  #PACKAGES="${PACKAGES} coq-relation-algebra.1.7.9" # does not build even after relaxing version constraints
+  PACKAGES="${PACKAGES} coq-relation-algebra.1.7.10"
 
   # Formal languages, compilers and code verification
   PACKAGES="${PACKAGES} coq-reglang.1.2.0"