diff --git a/packages/awa/awa.0.0.1/opam b/packages/awa/awa.0.0.1/opam
index f5272468ec80..ff621df8f939 100644
--- a/packages/awa/awa.0.0.1/opam
+++ b/packages/awa/awa.0.0.1/opam
@@ -34,6 +34,7 @@ depends: [
   "base64" {>= "3.0.0"}
   "hacl_x25519" {>= "0.2.0"}
   "zarith"
+  "domain-name" {< "0.3.1"}
 ]
 synopsis: "SSH implementation in OCaml"
 description: """The OpenSSH protocol implemented in OCaml."""
diff --git a/packages/awa/awa.0.0.2/opam b/packages/awa/awa.0.0.2/opam
index 68cf4031b5bd..84d85323d4c5 100644
--- a/packages/awa/awa.0.0.2/opam
+++ b/packages/awa/awa.0.0.2/opam
@@ -34,6 +34,7 @@ depends: [
   "cmdliner"
   "base64" {>= "3.0.0"}
   "zarith"
+  "domain-name" {< "0.3.1"}
 ]
 synopsis: "SSH implementation in OCaml"
 description: """The OpenSSH protocol implemented in OCaml."""
diff --git a/packages/awa/awa.0.0.3/opam b/packages/awa/awa.0.0.3/opam
index dc60ddf57935..8d0982b33041 100644
--- a/packages/awa/awa.0.0.3/opam
+++ b/packages/awa/awa.0.0.3/opam
@@ -34,6 +34,7 @@ depends: [
   "cmdliner"
   "base64" {>= "3.0.0"}
   "zarith"
+  "domain-name" {< "0.3.1"}
 ]
 synopsis: "SSH implementation in OCaml"
 description: """The OpenSSH protocol implemented in OCaml."""
diff --git a/packages/dkim/dkim.0.1.0/opam b/packages/dkim/dkim.0.1.0/opam
index 1dbad98a2f43..b369c019435a 100644
--- a/packages/dkim/dkim.0.1.0/opam
+++ b/packages/dkim/dkim.0.1.0/opam
@@ -23,7 +23,7 @@ depends: [
   "digestif"   {>= "0.9.0"}
   "base-unix"
   "hmap"
-  "domain-name"
+  "domain-name" {< "0.3.1"}
   "dns-client" {>= "4.6.3" & < "5.0.0"}
   "cmdliner"
   "logs"
diff --git a/packages/dkim/dkim.0.2.0/opam b/packages/dkim/dkim.0.2.0/opam
index da4b74ed188c..552d46894893 100644
--- a/packages/dkim/dkim.0.2.0/opam
+++ b/packages/dkim/dkim.0.2.0/opam
@@ -24,7 +24,7 @@ depends: [
   "ipaddr"
   "base-unix"
   "hmap"
-  "domain-name"
+  "domain-name" {< "0.3.1"}
   "dns-client" {>= "5.0.0" & < "6.0.0"}
   "cmdliner"
   "logs"
diff --git a/packages/paf-le/paf-le.0.0.6/opam b/packages/paf-le/paf-le.0.0.6/opam
index 53e004d5ac87..dfa7ce19349b 100644
--- a/packages/paf-le/paf-le.0.0.6/opam
+++ b/packages/paf-le/paf-le.0.0.6/opam
@@ -19,6 +19,7 @@ depends: [
   "mirage-time"
   "tls-mirage"
   "x509" {>= "0.13.0"}
+  "domain-name" {< "0.3.1"}
 ]
 build: ["dune" "build" "-p" name "-j" jobs]
 run-test: ["dune" "runtest" "-p" name "-j" jobs]