diff --git a/packages/rpmfile-cli/rpmfile-cli.0.3.0/opam b/packages/rpmfile-cli/rpmfile-cli.0.3.0/opam
index a739c5a0b4a..ca216023b6a 100644
--- a/packages/rpmfile-cli/rpmfile-cli.0.3.0/opam
+++ b/packages/rpmfile-cli/rpmfile-cli.0.3.0/opam
@@ -11,7 +11,7 @@ depends: [
   "ocaml" {> "5.1"}
   "dune" {>= "3.16"}
   "eio_main" {>= "1.1"}
-  "rpmfile-eio"
+  "rpmfile-eio" {= "0.3.1"}
   "odoc" {with-doc}
 ]
 build: [
diff --git a/packages/rpmfile-cli/rpmfile-cli.0.3.1/opam b/packages/rpmfile-cli/rpmfile-cli.0.3.1/opam
index 3df52c4fbd1..00bbde9e229 100644
--- a/packages/rpmfile-cli/rpmfile-cli.0.3.1/opam
+++ b/packages/rpmfile-cli/rpmfile-cli.0.3.1/opam
@@ -11,7 +11,7 @@ depends: [
   "ocaml" {> "5.1"}
   "dune" {>= "3.16"}
   "eio_main" {>= "1.1"}
-  "rpmfile-eio"
+  "rpmfile-eio" {= "0.3.1"}
   "odoc" {with-doc}
 ]
 build: [
diff --git a/packages/rpmfile-cli/rpmfile-cli.0.4.0/opam b/packages/rpmfile-cli/rpmfile-cli.0.4.0/opam
new file mode 100644
index 00000000000..30dd3595b3b
--- /dev/null
+++ b/packages/rpmfile-cli/rpmfile-cli.0.4.0/opam
@@ -0,0 +1,38 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "CLI utility for reading RPM package information (like rpm -qi)"
+maintainer: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+authors: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+license: "MIT"
+tags: ["rpm" "parser" "rpmfile"]
+homepage: "https://github.com/dx3mod/rpmfile"
+bug-reports: "https://github.com/dx3mod/rpmfile/issues"
+depends: [
+  "ocaml" {> "5.1"}
+  "dune" {>= "3.16"}
+  "eio_main" {>= "1.1"}
+  "rpmfile-eio" {>= "0.4.0"}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/dx3mod/rpmfile.git"
+url {
+  src: "https://github.com/dx3mod/rpmfile/archive/refs/tags/0.4.tar.gz"
+  checksum: [
+    "md5=3395b5a612e6a4b05172f048a22a8620"
+    "sha512=91bf570efd1a410e6e0e4a5a3d47f5fab401711ddc3bb451e54f729c074e0ce414bcaf29034c08b1e9fcc46ca54ecfd12acc756916b61752f454999d89c4302a"
+  ]
+}
diff --git a/packages/rpmfile-eio/rpmfile-eio.0.4.0/opam b/packages/rpmfile-eio/rpmfile-eio.0.4.0/opam
new file mode 100644
index 00000000000..962949ab7d5
--- /dev/null
+++ b/packages/rpmfile-eio/rpmfile-eio.0.4.0/opam
@@ -0,0 +1,40 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "RPM package metadata reader (powered by Eio)"
+maintainer: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+authors: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+license: "MIT"
+tags: ["rpm" "parser" "rpmfile"]
+homepage: "https://github.com/dx3mod/rpmfile"
+bug-reports: "https://github.com/dx3mod/rpmfile/issues"
+depends: [
+  "ocaml" {> "5.1"}
+  "dune" {>= "3.16"}
+  "rpmfile" {>= "0.4.0"}
+  "eio" {>= "1.1"}
+  "alcotest" {with-test}
+  "eio_main" {with-test}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/dx3mod/rpmfile.git"
+url {
+  src: "https://github.com/dx3mod/rpmfile/archive/refs/tags/0.4.tar.gz"
+  checksum: [
+    "md5=3395b5a612e6a4b05172f048a22a8620"
+    "sha512=91bf570efd1a410e6e0e4a5a3d47f5fab401711ddc3bb451e54f729c074e0ce414bcaf29034c08b1e9fcc46ca54ecfd12acc756916b61752f454999d89c4302a"
+  ]
+}
diff --git a/packages/rpmfile-unix/rpmfile-unix.0.4.0/opam b/packages/rpmfile-unix/rpmfile-unix.0.4.0/opam
new file mode 100644
index 00000000000..2a704399f6c
--- /dev/null
+++ b/packages/rpmfile-unix/rpmfile-unix.0.4.0/opam
@@ -0,0 +1,40 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "RPM package metadata reader (powered by Angstrom)"
+maintainer: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+authors: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+license: "MIT"
+tags: ["rpm" "parser" "rpmfile"]
+homepage: "https://github.com/dx3mod/rpmfile"
+bug-reports: "https://github.com/dx3mod/rpmfile/issues"
+depends: [
+  "ocaml" {>= "4.14"}
+  "dune" {>= "3.16"}
+  "rpmfile" {>= "0.3.0"}
+  "angstrom" {>= "0.15"}
+  "angstrom-unix" {>= "0.15"}
+  "alcotest" {with-test}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/dx3mod/rpmfile.git"
+url {
+  src: "https://github.com/dx3mod/rpmfile/archive/refs/tags/0.4.tar.gz"
+  checksum: [
+    "md5=3395b5a612e6a4b05172f048a22a8620"
+    "sha512=91bf570efd1a410e6e0e4a5a3d47f5fab401711ddc3bb451e54f729c074e0ce414bcaf29034c08b1e9fcc46ca54ecfd12acc756916b61752f454999d89c4302a"
+  ]
+}
diff --git a/packages/rpmfile/rpmfile.0.4.0/opam b/packages/rpmfile/rpmfile.0.4.0/opam
new file mode 100644
index 00000000000..c8e10bebc0b
--- /dev/null
+++ b/packages/rpmfile/rpmfile.0.4.0/opam
@@ -0,0 +1,36 @@
+# This file is generated by dune, edit dune-project instead
+opam-version: "2.0"
+synopsis: "RPM package metadata reader"
+maintainer: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+authors: ["Mikhail Lopatin <dx3mod@bk.ru>"]
+license: "MIT"
+tags: ["rpm" "parser" "rpmfile"]
+homepage: "https://github.com/dx3mod/rpmfile"
+bug-reports: "https://github.com/dx3mod/rpmfile/issues"
+depends: [
+  "ocaml" {>= "4.14"}
+  "dune" {>= "3.16"}
+  "odoc" {with-doc}
+]
+build: [
+  ["dune" "subst"] {dev}
+  [
+    "dune"
+    "build"
+    "-p"
+    name
+    "-j"
+    jobs
+    "@install"
+    "@runtest" {with-test}
+    "@doc" {with-doc}
+  ]
+]
+dev-repo: "git+https://github.com/dx3mod/rpmfile.git"
+url {
+  src: "https://github.com/dx3mod/rpmfile/archive/refs/tags/0.4.tar.gz"
+  checksum: [
+    "md5=3395b5a612e6a4b05172f048a22a8620"
+    "sha512=91bf570efd1a410e6e0e4a5a3d47f5fab401711ddc3bb451e54f729c074e0ce414bcaf29034c08b1e9fcc46ca54ecfd12acc756916b61752f454999d89c4302a"
+  ]
+}