diff --git a/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.0/opam b/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.0/opam
index 00f2f94acfd..06e71e37f8c 100644
--- a/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.0/opam
+++ b/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.0/opam
@@ -13,7 +13,7 @@ bug-reports: "https://github.com/aantron/bisect_ppx/issues"
 dev-repo: "git+https://github.com/aantron/bisect_ppx.git"
 depends: [
   "ocaml"
-  "bisect_ppx" {>= "1.0.0"}
+  "bisect_ppx" {>= "1.0.0" & < "1.3.3"}
   "jbuilder" {build & >= "1.0+beta10"}
 ]
 build: [
diff --git a/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.1/opam b/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.1/opam
new file mode 100644
index 00000000000..29f1a398d77
--- /dev/null
+++ b/packages/bisect_ppx-ocamlbuild/bisect_ppx-ocamlbuild.1.0.1/opam
@@ -0,0 +1,27 @@
+version: "1.0.1"
+opam-version: "2.0"
+maintainer: [
+  "Anton Bachin <antonbachin@yahoo.com>"
+  "Leonid Rozenberg <leonidr@gmail.com>"
+]
+authors: [
+  "Anton Bachin <antonbachin@yahoo.com>"
+]
+license: "Public Domain"
+homepage: "https://github.com/aantron/bisect_ppx"
+bug-reports: "https://github.com/aantron/bisect_ppx/issues"
+dev-repo: "git+https://github.com/aantron/bisect_ppx.git"
+depends: [
+  "ocaml"
+  "bisect_ppx" {>= "1.0.0"}
+  "jbuilder" {build & >= "1.0+beta10"}
+  "ocamlbuild"
+]
+build: [
+  ["jbuilder" "build" "-p" name "-j" jobs]
+]
+synopsis: "Ocamlbuild plugin for Bisect_ppx, the coverage tool"
+url {
+  src: "https://github.com/aantron/bisect_ppx/archive/1.3.3.tar.gz"
+  checksum: "md5=6d57cab32da2b22fa972b4229597e06f"
+}
diff --git a/packages/bisect_ppx/bisect_ppx.1.3.3/opam b/packages/bisect_ppx/bisect_ppx.1.3.3/opam
new file mode 100644
index 00000000000..26e1f9ff3b3
--- /dev/null
+++ b/packages/bisect_ppx/bisect_ppx.1.3.3/opam
@@ -0,0 +1,65 @@
+version: "1.3.3"
+opam-version: "2.0"
+maintainer: [
+  "Anton Bachin <antonbachin@yahoo.com>"
+  "Leonid Rozenberg <leonidr@gmail.com>"
+]
+authors: [
+  "Xavier Clerc <bisect@x9c.fr>"
+  "Leonid Rozenberg <leonidr@gmail.com>"
+  "Anton Bachin <antonbachin@yahoo.com>"
+]
+license: "MPL2"
+homepage: "https://github.com/aantron/bisect_ppx"
+bug-reports: "https://github.com/aantron/bisect_ppx/issues"
+dev-repo: "git+https://github.com/aantron/bisect_ppx.git"
+depends: [
+  "ocaml" {>= "4.02.0"}
+  "base-unix"
+  "jbuilder" {build & >= "1.0+beta13"}
+  "ocamlfind" {with-test}
+  "ocaml-migrate-parsetree" {>= "1.0.3"}
+  "ounit" {with-test}
+  "ppx_tools_versioned"
+]
+conflicts: [
+  "ocveralls" {<= "0.3.2"}
+]
+# Note that Bisect_ppx effectively requires 4.02.3, because Jbuilder requires
+# it. 4.02.0 is the natural constraint of Bisect_ppx.
+messages: [
+  "For the Ocamlbuild plugin, please install package bisect_ppx-ocamlbuild"
+  {ocamlbuild:installed & !bisect_ppx-ocamlbuild:installed}
+]
+post-messages: [
+  "The future Bisect_ppx 2.0.0 will make breaking changes. See
+  https://github.com/aantron/bisect_ppx/releases/tag/1.3.0"
+]
+
+build: [
+  ["jbuilder" "build" "-p" name "-j" jobs]
+  ["jbuilder" "runtest" "-p" name] {with-test}
+]
+synopsis: "Code coverage for OCaml"
+description: """
+Bisect_ppx helps you test thoroughly. It is a small preprocessor that inserts
+instrumentation at places in your code, such as if-then-else and match
+expressions. After you run tests, Bisect_ppx gives a nice HTML report showing
+which places were visited and which were missed.
+
+Usage is simple - add package bisect_ppx when building tests, then run the
+report tool on the generated visitation files.
+
+This is an advanced fork of the original Bisect coverage tool. It has many
+improvements and updates.
+
+- Much more thorough code instrumentation, so you can find more gaps in your
+  testing.
+- Fast operation by default.
+- More legible and appealing HTML reports.
+- Various bugfixes.
+- No camlp4 dependency."""
+url {
+  src: "https://github.com/aantron/bisect_ppx/archive/1.3.3.tar.gz"
+  checksum: "md5=6d57cab32da2b22fa972b4229597e06f"
+}