diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6e05ccdd1056e6764c5bbcdc40b2455ea26acb32..671f25109b021bf964cab1c537dcff834008709c 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -36,7 +36,7 @@ variables:
   # /!\ CI_REGISTRY is overriden to use a private Docker registry mirror in AWS ECR
   # in GitLab namespaces `nomadic-labs` and `tezos`
   ## This value MUST be the same as `opam_repository_tag` in `scripts/version.sh`
-  build_deps_image_version: e3722c130dcd78c999602d215758399cc0f43d4a
+  build_deps_image_version: 209f861254276cab87c0a38f9d1451ff8f82c68a
   build_deps_image_name: "${CI_REGISTRY}/tezos/opam-repository"
   GIT_STRATEGY: fetch
   GIT_DEPTH: "1"
diff --git a/.gitlab/ci/jobs/doc/linkcheck.yml b/.gitlab/ci/jobs/doc/linkcheck.yml
index 02ffc163c2109a8f1c84d04513254435ef91a06a..8cd8091fbc0b1e26e558bafcb32f7b78745e82dd 100644
--- a/.gitlab/ci/jobs/doc/linkcheck.yml
+++ b/.gitlab/ci/jobs/doc/linkcheck.yml
@@ -5,6 +5,8 @@ documentation:linkcheck:
   stage: doc
   needs: []
   rules:
+    - if: '$CI_MERGE_REQUEST_LABELS =~ /(?:^|[,])ci--no-docs(?:$|[,])/'
+      when: manual
     - if: '$CI_PIPELINE_SOURCE == "schedule" && $TZ_SCHEDULE_KIND == "EXTENDED_TESTS"'
       when: always
     - if: '$CI_MERGE_REQUEST_ID'
diff --git a/.gitlab/ci/jobs/doc/tests.yml b/.gitlab/ci/jobs/doc/tests.yml
index 75d41824b8471c5f57ecaec4e1c9474d78f09deb..f011f72d0bd8b89af0c6e89cf61c04df9ade6a9c 100644
--- a/.gitlab/ci/jobs/doc/tests.yml
+++ b/.gitlab/ci/jobs/doc/tests.yml
@@ -2,6 +2,9 @@
   stage: doc
   needs: []
   rules:
+    - if: '$CI_MERGE_REQUEST_LABELS =~ /(?:^|[,])ci--no-docs(?:$|[,])/'
+      when: manual
+      allow_failure: true
     - if: '$CI_PIPELINE_SOURCE == "schedule" && $TZ_SCHEDULE_KIND == "EXTENDED_TESTS"'
       when: always
     - if: '$CI_MERGE_REQUEST_ID'
diff --git a/docs/developer/install-python-debian-ubuntu.sh b/docs/developer/install-python-debian-ubuntu.sh
index 47f029379b45bfda0b7a8de59267daf57820dd23..636aeda6c248f64feaa9cc4d8466c3e05a60c5d4 100755
--- a/docs/developer/install-python-debian-ubuntu.sh
+++ b/docs/developer/install-python-debian-ubuntu.sh
@@ -67,20 +67,20 @@ pyenv --version
 [ "$PYENV_VIRTUALENV_INIT" = "1" ]
 
 ##
-## Install python 3.10.11 through pyenv
+## Install python 3.10.12 through pyenv
 ##
 ## References:
 ##  - https://github.com/pyenv/pyenv#usage
 
 # [install python through pyenv]
-pyenv install 3.10.11
-pyenv global 3.10.11
+pyenv install 3.10.12
+pyenv global 3.10.12
 
 # [print python version]
-python --version # should output 3.10.11
+python --version # should output 3.10.12
 
 # [verify python version]
-[ "$(python --version)" = "Python 3.10.11" ]
+[ "$(python --version)" = "Python 3.10.12" ]
 
 ##
 ## Install poetry
diff --git a/docs/developer/python_environment.rst b/docs/developer/python_environment.rst
index 1831771dd89eeb9a2ac7dd159e2092cf3c46bbb2..996b37e5b46cfb2c2d66c7c59a1cc8cf853ba804 100644
--- a/docs/developer/python_environment.rst
+++ b/docs/developer/python_environment.rst
@@ -12,7 +12,7 @@ Installation
 
 Prerequisites:
 
-- ``python 3.10.11``. It is recommended to use `pyenv
+- ``python 3.10.12``. It is recommended to use `pyenv
   <https://github.com/pyenv/pyenv>`_ to manage the python versions.
   If you want to use ``pyenv``:
 
@@ -21,11 +21,11 @@ Prerequisites:
     has been executed first during the shell session, by adding this line to an
     environment script sourced automatically.
 
-  * You can use then ``pyenv install 3.10.11`` followed by:
+  * You can use then ``pyenv install 3.10.12`` followed by:
 
-    + ``pyenv local 3.10.11`` to use ``python 3.10.11`` only in the current directory (and its subdirectories, unless redefined)
-    + ``pyenv global 3.10.11`` to set the python version to ``3.10.11`` globally
-    + ``pyenv shell 3.10.11`` to use ``python 3.10.11`` only in the current shell
+    + ``pyenv local 3.10.12`` to use ``python 3.10.12`` only in the current directory (and its subdirectories, unless redefined)
+    + ``pyenv global 3.10.12`` to set the python version to ``3.10.12`` globally
+    + ``pyenv shell 3.10.12`` to use ``python 3.10.12`` only in the current shell
 
 - `poetry 1.2.2 <https://python-poetry.org/>`_ to manage the python dependencies and
   run the tests in a sandboxed python environment. Follow the `installation instructions <https://python-poetry.org/docs/#installation>`__.
@@ -39,8 +39,8 @@ A typical installation of the above prerequisites (including their own prerequis
   # 1. install pyenv
   # 2. restart shell, to ensure "pyenv init -" has been evaluated
   # 3. then install python using pyenv:
-  pyenv install 3.10.11
-  pyenv global 3.10.11
+  pyenv install 3.10.12
+  pyenv global 3.10.12
   # 4. install poetry
   # 5. restart shell, to activate the poetry setup
   # 6. then install dependencies for Octez using poetry:
@@ -88,7 +88,7 @@ executing ``pyenv``:
    :start-after: [print pyenv version]
    :end-before: [verify pyenv installation]
 
-Now we can use ``pyenv`` to install Python 3.10.11 and set it as the
+Now we can use ``pyenv`` to install Python 3.10.12 and set it as the
 default version to use:
 
 .. literalinclude:: install-python-debian-ubuntu.sh
diff --git a/manifest/main.ml b/manifest/main.ml
index ea9f2fd447ebd2b434386505f87b3a3a1d4657f3..a9d1ea3b99beb76c861d9c8defb6c77f7f4b6763 100644
--- a/manifest/main.ml
+++ b/manifest/main.ml
@@ -101,7 +101,8 @@ let caqti_dynload = external_lib "caqti-dynload" V.True
 
 let cmdliner = external_lib "cmdliner" V.(at_least "1.1.0")
 
-let cohttp_lwt_unix = external_lib "cohttp-lwt-unix" V.(at_least "4.0.0")
+let cohttp_lwt_unix =
+  external_lib "cohttp-lwt-unix" V.(at_least "4.0.0" && different_from "5.1.0")
 
 let compiler_libs_common = external_lib "compiler-libs.common" V.True ~opam:""
 
@@ -3228,6 +3229,7 @@ let octez_rpc_http_server =
       [
         octez_base |> open_ ~m:"TzPervasives";
         octez_stdlib_unix |> open_;
+        cohttp_lwt_unix;
         resto_cohttp_server;
         resto_acl;
         octez_rpc;
diff --git a/opam/octez-smart-rollup-node.opam b/opam/octez-smart-rollup-node.opam
index a16d7d72c2b3db2c9874994ab8a5dbc6b958caf6..13849691cfe6209e94aecc0534f895140ccc9f25 100644
--- a/opam/octez-smart-rollup-node.opam
+++ b/opam/octez-smart-rollup-node.opam
@@ -13,7 +13,7 @@ depends: [
   "tezos-base"
   "tezos-stdlib-unix"
   "tezos-crypto"
-  "cohttp-lwt-unix" { >= "4.0.0" }
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
   "octez-node-config"
   "prometheus-app" { >= "1.2" }
   "octez-injector"
diff --git a/opam/tezos-rpc-http-client-unix.opam b/opam/tezos-rpc-http-client-unix.opam
index f70597e9e8aaddb96af0c9aaf9e0fa6755163f92..29b2b02cf854613352f8c0566865ef0c063f3f74 100644
--- a/opam/tezos-rpc-http-client-unix.opam
+++ b/opam/tezos-rpc-http-client-unix.opam
@@ -12,7 +12,7 @@ depends: [
   "ocaml" { >= "4.14" }
   "tezos-stdlib-unix"
   "tezos-base"
-  "cohttp-lwt-unix" { >= "4.0.0" }
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
   "resto-cohttp-client" { >= "1.0" }
   "tezos-rpc"
   "tezos-rpc-http-client"
diff --git a/opam/tezos-rpc-http-server.opam b/opam/tezos-rpc-http-server.opam
index d7e34f70990f538fc3dff6ec4efc606f796c35e9..f63103ccb646db5ddc88c4334b08623663b0696b 100644
--- a/opam/tezos-rpc-http-server.opam
+++ b/opam/tezos-rpc-http-server.opam
@@ -12,6 +12,7 @@ depends: [
   "ocaml" { >= "4.14" }
   "tezos-base"
   "tezos-stdlib-unix"
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
   "resto-cohttp-server" { >= "1.0" }
   "resto-acl" { >= "1.0" }
   "tezos-rpc"
diff --git a/opam/tezt-performance-regression.opam b/opam/tezt-performance-regression.opam
index 0493321d688bbf343fa2f3159e09e80510d3c5be..fece3068ccf5adf72d198aef8d7e733cbdd6282b 100644
--- a/opam/tezt-performance-regression.opam
+++ b/opam/tezt-performance-regression.opam
@@ -12,7 +12,7 @@ depends: [
   "ocaml" { >= "4.14" }
   "tezt" { >= "3.1.0" }
   "uri" { >= "3.1.0" }
-  "cohttp-lwt-unix" { >= "4.0.0" }
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
 ]
 build: [
   ["rm" "-r" "vendors" "contrib"]
diff --git a/opam/tezt-tezos.opam b/opam/tezt-tezos.opam
index 3f6fe07f7384b5788ddcaab5c2ab090431d3b822..c3c22ce30208d03b6abbd1232b8f72cd83f6bd97 100644
--- a/opam/tezt-tezos.opam
+++ b/opam/tezt-tezos.opam
@@ -16,7 +16,7 @@ depends: [
   "hex" { >= "1.3.0" }
   "tezos-crypto-dal"
   "tezos-base"
-  "cohttp-lwt-unix" { >= "4.0.0" }
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
 ]
 build: [
   ["rm" "-r" "vendors" "contrib"]
diff --git a/opam/virtual/octez-deps.opam b/opam/virtual/octez-deps.opam
index d823b50f978b0a0d489be12f1866e4e25a3aca72..ac541bf509343d6a6354ce15193f612e6e3600c4 100644
--- a/opam/virtual/octez-deps.opam
+++ b/opam/virtual/octez-deps.opam
@@ -24,7 +24,7 @@ depends: [
   "caqti-lwt"
   "class_group_vdf" { >= "0.0.4" }
   "cmdliner" { >= "1.1.0" }
-  "cohttp-lwt-unix" { >= "4.0.0" }
+  "cohttp-lwt-unix" { >= "4.0.0" & != "5.1.0" }
   "conf-libev"
   "conf-rust"
   "ctypes" { >= "0.18.0" }
diff --git a/scripts/version.sh b/scripts/version.sh
index 24dcbe9a116bd3e00dee33b8c01a765c31aecdc5..14b0783d243d5397c46cbb80ccda1d2e65065775 100755
--- a/scripts/version.sh
+++ b/scripts/version.sh
@@ -25,8 +25,7 @@ export full_opam_repository_tag=0e89b5b0195c6f2597c95251896e1ef8b199c1d2
 ## opam_repository is an additional, tezos-specific opam repository.
 ## This value MUST be the same as `build_deps_image_version` in `.gitlab-ci.yml`
 export opam_repository_url=https://gitlab.com/tezos/opam-repository
-export opam_repository_tag="${OPAM_REPOSITORY_TAG:-e3722c130dcd78c999602d215758399cc0f43d4a}"
-
+export opam_repository_tag="${OPAM_REPOSITORY_TAG:-209f861254276cab87c0a38f9d1451ff8f82c68a}"
 export opam_repository_git="$opam_repository_url.git"
 export opam_repository="$opam_repository_git"\#"$opam_repository_tag"
 
diff --git a/src/lib_rpc_http/dune b/src/lib_rpc_http/dune
index e65dccf0409792b2a6ea0e2ea38da9e2711efd2e..1db6a874a13c2e7fe3c4c5c39d09d2efc89184a2 100644
--- a/src/lib_rpc_http/dune
+++ b/src/lib_rpc_http/dune
@@ -54,6 +54,7 @@
  (libraries
   tezos-base
   tezos-stdlib-unix
+  cohttp-lwt-unix
   resto-cohttp-server
   resto-acl
   tezos-rpc