diff --git a/packages/pa_ppx_regexp/pa_ppx_regexp.0.03/opam b/packages/pa_ppx_regexp/pa_ppx_regexp.0.03/opam
index 0241695be17..52bb2ec6eda 100644
--- a/packages/pa_ppx_regexp/pa_ppx_regexp.0.03/opam
+++ b/packages/pa_ppx_regexp/pa_ppx_regexp.0.03/opam
@@ -14,12 +14,12 @@ license: "BSD-3-Clause"
 bug-reports: "https://github.com/camlp5/pa_ppx_regexp/issues"
 dev-repo: "git+https://github.com/camlp5/pa_ppx_regexp.git"
 doc: "https://github.com/camlp5/pa_ppx_regexp/doc"
-
+available: false
 depends: [
   "ocaml"       { >= "4.10.0" }
   "camlp5-buildscripts" { >= "0.02" }
   "camlp5"      { >= "8.01.00" }
-  "pa_ppx"      { = "0.15" }
+  "pa_ppx"      { >= "0.15" }
   "pa_ppx_migrate"      { >= "0.10" }
   "pa_ppx_static" { >= "0.01" }
   "not-ocamlfind" { >= "0.10" }
diff --git a/packages/pa_ppx_regexp/pa_ppx_regexp.0.04/opam b/packages/pa_ppx_regexp/pa_ppx_regexp.0.04/opam
new file mode 100644
index 00000000000..7e85fa31ce0
--- /dev/null
+++ b/packages/pa_ppx_regexp/pa_ppx_regexp.0.04/opam
@@ -0,0 +1,43 @@
+
+synopsis: "A Camlp5 PPX Rewriter for Perl Regexp Workalikes "
+description:
+"""
+This is a PPX Rewriter for some workalikes to perl regexp operations,
+based on Camlp5 (so it's compatible with all the other Camlp5-based PPX rewriters).
+"""
+opam-version: "2.0"
+x-maintenance-intent: [ "(latest)" ]
+maintainer: "Chet Murthy <chetsky@gmail.com>"
+authors: ["Chet Murthy"]
+homepage: "https://github.com/camlp5/pa_ppx_regexp"
+license: "BSD-3-Clause"
+bug-reports: "https://github.com/camlp5/pa_ppx_regexp/issues"
+dev-repo: "git+https://github.com/camlp5/pa_ppx_regexp.git"
+doc: "https://github.com/camlp5/pa_ppx_regexp/doc"
+
+depends: [
+  "ocaml"       { >= "4.10.0" }
+  "camlp5-buildscripts" { >= "0.02" }
+  "camlp5"      { >= "8.01.00" }
+  "pa_ppx"      { >= "0.15" }
+  "pa_ppx_migrate"      { >= "0.10" }
+  "pa_ppx_static" { >= "0.01" }
+  "not-ocamlfind" { >= "0.10" }
+  "ounit" { >= "2.2.7" }
+  "mdx" {>= "2.3.0" & with-test}
+  "fmt"
+  "pcre" { >= "8.0.1" }
+  "pcre2" { >= "8.0.1" }
+  "re" { >= "1.12.0" }
+]
+build: [
+  [make "sys"]
+  [make "test"] {with-test}
+]
+install: [make "install"]
+url {
+  src: "https://github.com/camlp5/pa_ppx_regexp/archive/refs/tags/0.04.tar.gz"
+  checksum: [
+    "sha512=ccb7e9293959123cb9fe8e7c9525a6b5c059c750d764d1a9155b6afeec9b4531c4b5ea6b458395c8937c595ccc4c81e0c55c83a1c95252eff0354a55aa597047"
+  ]
+}