diff --git a/.travis.yml b/.travis.yml
index a2e286ffb2..18e1e2ece5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,27 +6,25 @@ install: wget https://raw.githubusercontent.com/ocaml/ocaml-travisci-skeleton/ma
 script: bash -ex ./.travis-docker.sh
 env:
   global:
-  - EXTRA_REMOTES="https://github.com/mirage/mirage-dev.git"
-  - PINS="cohttp-top:. cohttp-async:. cohttp-lwt-unix:. cohttp-lwt-jsoo:. cohttp-lwt:. cohttp-mirage:. cohttp:."
+  - PINS="cohttp-top.dev:. cohttp-async.dev:. cohttp-lwt-unix.dev:. cohttp-lwt-jsoo.dev:. cohttp-lwt.dev:. cohttp-mirage.dev:. cohttp.dev:."
   matrix:
-  - PACKAGE="cohttp" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
-  - PACKAGE="cohttp-async" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
-  - PACKAGE="cohttp-lwt-unix" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
-  - PACKAGE="cohttp-lwt-jsoo" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
-  - PACKAGE="cohttp-lwt" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
-  - PACKAGE="cohttp-mirage" DISTRO="ubuntu-18.04" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp" DISTRO="ubuntu-lts" OCAML_VERSION="4.08" DEPOPTS="cohttp-async cohttp-lwt-unix cohttp-mirage"
+  - PACKAGE="cohttp" DISTRO="ubuntu-lts" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp-async" DISTRO="ubuntu-lts" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp-lwt-unix" DISTRO="ubuntu-lts" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp-lwt-jsoo" DISTRO="ubuntu-lts" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp-lwt" DISTRO="ubuntu-lts" OCAML_VERSION="4.07"
+  - PACKAGE="cohttp-mirage" DISTRO="alpine" OCAML_VERSION="4.07"
   - PACKAGE="cohttp" DISTRO="alpine" OCAML_VERSION="4.06"
   - PACKAGE="cohttp-async" DISTRO="alpine" OCAML_VERSION="4.06"
   - PACKAGE="cohttp-lwt-unix" DISTRO="alpine" OCAML_VERSION="4.06"
   - PACKAGE="cohttp-lwt-jsoo" DISTRO="alpine" OCAML_VERSION="4.06"
   - PACKAGE="cohttp-lwt" DISTRO="alpine" OCAML_VERSION="4.06"
-  - PACKAGE="cohttp-mirage" DISTRO="alpine" OCAML_VERSION="4.06"
   - PACKAGE="cohttp" DISTRO="debian-unstable" OCAML_VERSION="4.05"
   - PACKAGE="cohttp-async" DISTRO="debian-unstable" OCAML_VERSION="4.05"
   - PACKAGE="cohttp-lwt-unix" DISTRO="debian-unstable" OCAML_VERSION="4.05"
   - PACKAGE="cohttp-lwt-jsoo" DISTRO="debian-unstable" OCAML_VERSION="4.05"
   - PACKAGE="cohttp-lwt" DISTRO="debian-unstable" OCAML_VERSION="4.05"
-  - PACKAGE="cohttp-mirage" DISTRO="debian-unstable" OCAML_VERSION="4.05"
   - PACKAGE="cohttp" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04"
   - PACKAGE="cohttp-async" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04"
   - PACKAGE="cohttp-lwt-unix" DISTRO="ubuntu-16.04" OCAML_VERSION="4.04"
diff --git a/CHANGES.md b/CHANGES.md
index 48c20ada58..9a521d227d 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,10 @@
+## dev
+
+- use conduit-mirage instead of mirage-conduit, which was renamed
+  upstream in conduit. The minimum OCaml version supported for
+  conduit-mirage is now OCaml 4.07 and higher. (@avsm)
+- remove deprecation warnings in OCaml 4.08.0 using stdlib-shims (@avsm)
+
 ## v2.1.3 (2019-07-12)
 
 - support uri.3.0.0 that has optional sexp support (#668 @avsm)
diff --git a/cohttp-async.opam b/cohttp-async.opam
index a4fe6a6f80..3df9fad831 100644
--- a/cohttp-async.opam
+++ b/cohttp-async.opam
@@ -24,18 +24,19 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
+  "dune" {>= "1.1.0"}
   "async_kernel" {>= "v0.11.0"}
   "async_unix" {>= "v0.11.0"}
   "async_extra" {>= "v0.11.0"}
   "base" {>= "v0.11.0"}
   "core" {with-test}
-  "cohttp"
+  "cohttp" {=version}
   "conduit-async" {>="1.2.0"}
   "magic-mime"
   "logs"
   "fmt" {>= "0.8.2"}
   "sexplib0"
+  "stdlib-shims"
   "ppx_sexp_conv" {>= "v0.9.0"}
   "ounit" {with-test}
   "uri" {>= "2.0.0"}
diff --git a/cohttp-async/bin/cohttp_curl_async.ml b/cohttp-async/bin/cohttp_curl_async.ml
index 3df9c43820..0b80bfac43 100644
--- a/cohttp-async/bin/cohttp_curl_async.ml
+++ b/cohttp-async/bin/cohttp_curl_async.ml
@@ -31,7 +31,7 @@ let make_net_req uri meth' body () =
   show_headers (Cohttp.Response.headers res);
   body
   |> Body.to_pipe
-  |> Pipe.iter ~f:(fun b -> Caml.Pervasives.print_string b; return ())
+  |> Pipe.iter ~f:(fun b -> Stdlib.print_string b; return ())
 
 let _ =
   (* enable logging to stdout *)
diff --git a/cohttp-lwt-jsoo.opam b/cohttp-lwt-jsoo.opam
index 820c2b1530..043dc9cd4a 100644
--- a/cohttp-lwt-jsoo.opam
+++ b/cohttp-lwt-jsoo.opam
@@ -23,9 +23,9 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
-  "cohttp" {>= "1.0.0"}
-  "cohttp-lwt" {>= "1.0.0"}
+  "dune" {>= "1.1.0"}
+  "cohttp" {=version}
+  "cohttp-lwt" {=version}
   "lwt" {>= "3.0.0"}
   "js_of_ocaml" {>= "3.3.0"}
   "js_of_ocaml-ppx" {>= "3.3.0"}
diff --git a/cohttp-lwt-unix.opam b/cohttp-lwt-unix.opam
index 8bf4c5bad9..25244d0a88 100644
--- a/cohttp-lwt-unix.opam
+++ b/cohttp-lwt-unix.opam
@@ -26,13 +26,13 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
+  "dune" {>= "1.1.0"}
   "conduit-lwt-unix" {>= "1.0.3"}
   "cmdliner"
   "magic-mime"
   "logs"
   "fmt" {>= "0.8.2"}
-  "cohttp-lwt"
+  "cohttp-lwt" {=version}
   "lwt" {>= "3.0.0"}
   "base-unix"
   "ounit" {with-test}
diff --git a/cohttp-lwt-unix/src/server.ml b/cohttp-lwt-unix/src/server.ml
index 1e5e0382c5..3aea6dc1ba 100644
--- a/cohttp-lwt-unix/src/server.ml
+++ b/cohttp-lwt-unix/src/server.ml
@@ -60,7 +60,14 @@ let respond_file ?headers ~fname () =
         respond_not_found ()
       | exn -> Lwt.fail exn)
 
-let create ?timeout ?backlog ?stop ?on_exn ?(ctx=Net.default_ctx)
+let log_on_exn =
+  function
+  | Unix.Unix_error (error, func, arg) ->
+     Logs.warn (fun m -> m "Client connection error %s: %s(%S)"
+       (Unix.error_message error) func arg)
+  | exn -> Logs.err (fun m -> m "Unhandled exception: %a" Fmt.exn exn)
+
+let create ?timeout ?backlog ?stop ?(on_exn=log_on_exn) ?(ctx=Net.default_ctx)
     ?(mode=`TCP (`Port 8080)) spec =
-  Conduit_lwt_unix.serve ?backlog ?timeout ?stop ?on_exn ~ctx:ctx.Net.ctx
+  Conduit_lwt_unix.serve ?backlog ?timeout ?stop ~on_exn ~ctx:ctx.Net.ctx
     ~mode (callback spec)
diff --git a/cohttp-lwt-unix/src/server.mli b/cohttp-lwt-unix/src/server.mli
index 46ff8b1bd0..8f2a8907c1 100644
--- a/cohttp-lwt-unix/src/server.mli
+++ b/cohttp-lwt-unix/src/server.mli
@@ -27,8 +27,8 @@ val respond_file :
 
     Every connection will be served in a new lightweight thread that
    is invoked via the callback defined in [t]. If the callback raises
-   an exception, it is passed to [on_exn] (by default, to
-   !Lwt.async_exception_hook). *)
+   an exception, it is passed to [on_exn] (by default, to a function
+   that logs the exceptiom using the {!Logs} library). *)
 val create :
   ?timeout:int ->
   ?backlog:int ->
diff --git a/cohttp-lwt.opam b/cohttp-lwt.opam
index f0565a4afb..7105d7f34e 100644
--- a/cohttp-lwt.opam
+++ b/cohttp-lwt.opam
@@ -26,8 +26,8 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
-  "cohttp" {>= "1.0.0"}
+  "dune" {>= "1.1.0"}
+  "cohttp" {=version}
   "lwt" {>= "2.5.0"}
   "sexplib0"
   "ppx_sexp_conv" {>= "v0.9.0"}
diff --git a/cohttp-mirage.opam b/cohttp-mirage.opam
index a19ad1ca72..7f04156ac8 100644
--- a/cohttp-mirage.opam
+++ b/cohttp-mirage.opam
@@ -19,11 +19,11 @@ Please see <https://mirage.io> for a self-hosted explanation
 and instructions on how to use this library."""
 depends: [
   "ocaml" {>= "4.05.0"}
-  "dune" {build & >= "1.1.0"}
+  "dune" {>= "1.1.0"}
   "mirage-flow-lwt" {>= "1.2.0"}
   "mirage-channel-lwt" {>= "3.0.0"}
   "conduit" {>= "0.99"}
-  "mirage-conduit" {>= "3.0.0"}
+  "conduit-mirage"
   "mirage-kv-lwt" {>= "2.0.0"}
   "lwt" {>= "2.4.3"}
   "cohttp"
diff --git a/cohttp-mirage/src/dune b/cohttp-mirage/src/dune
index 1049e946b7..9398ac5005 100644
--- a/cohttp-mirage/src/dune
+++ b/cohttp-mirage/src/dune
@@ -3,5 +3,5 @@
   (public_name cohttp-mirage)
   (synopsis    "Mirage backend for cohttp")
   (wrapped false)
-  (libraries   cohttp-lwt mirage-channel-lwt mirage-conduit sexplib
+  (libraries   cohttp-lwt mirage-channel-lwt conduit-mirage sexplib
                mirage-flow-lwt magic-mime astring))
diff --git a/cohttp-top.opam b/cohttp-top.opam
index 14d0c39e73..589b97376d 100644
--- a/cohttp-top.opam
+++ b/cohttp-top.opam
@@ -22,8 +22,8 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
-  "cohttp"
+  "dune" {>= "1.1.0"}
+  "cohttp" {=version}
 ]
 build: [
   ["dune" "subst"] {pinned}
diff --git a/cohttp.opam b/cohttp.opam
index 0849b093c0..7f1ab64c02 100644
--- a/cohttp.opam
+++ b/cohttp.opam
@@ -33,7 +33,7 @@ doc: "https://mirage.github.io/ocaml-cohttp/"
 bug-reports: "https://github.com/mirage/ocaml-cohttp/issues"
 depends: [
   "ocaml" {>= "4.04.1"}
-  "dune" {build & >= "1.1.0"}
+  "dune" {>= "1.1.0"}
   "re" {>= "1.9.0"}
   "uri" {>= "2.0.0"}
   "uri-sexp"
@@ -43,6 +43,7 @@ depends: [
   "ppx_sexp_conv" {>= "v0.9.0"}
   "stringext"
   "base64" {>= "3.1.0"}
+  "stdlib-shims"
   "fmt" {with-test}
   "jsonm" {build}
   "alcotest" {with-test}
diff --git a/cohttp/src/connection.ml b/cohttp/src/connection.ml
index ce1182e8b7..381dd67d8c 100644
--- a/cohttp/src/connection.ml
+++ b/cohttp/src/connection.ml
@@ -26,4 +26,4 @@ let create () =
   incr count;
   !count
 
-let compare (a:t) (b:t) = Pervasives.compare a b
+let compare (a:t) (b:t) = Stdlib.compare a b
diff --git a/cohttp/src/dune b/cohttp/src/dune
index 107da89505..a3a15d0701 100644
--- a/cohttp/src/dune
+++ b/cohttp/src/dune
@@ -10,7 +10,7 @@
  (public_name cohttp)
  (synopsis "Co-operative Client/Server HTTP library.")
  (preprocess (pps ppx_fields_conv ppx_sexp_conv))
- (libraries re stringext uri uri-sexp fieldslib sexplib0 bytes base64))
+ (libraries re stringext uri uri-sexp fieldslib sexplib0 bytes base64 stdlib-shims))
 
 (ocamllex  accept_lexer)
 (ocamlyacc accept_parser)
diff --git a/cohttp/src/header.ml b/cohttp/src/header.ml
index 843d160d68..dc86226aab 100644
--- a/cohttp/src/header.ml
+++ b/cohttp/src/header.ml
@@ -33,7 +33,7 @@ type t = string list StringMap.t
 
 let user_agent = Printf.sprintf "ocaml-cohttp/%s" Conf.version
 
-let compare = StringMap.compare Pervasives.compare
+let compare = StringMap.compare Stdlib.compare
 
 let headers_with_list_values = Array.map LString.of_string [|
   "accept";"accept-charset";"accept-encoding";"accept-language";