diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 6ab62674f..fd988aca4 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -9,7 +9,7 @@ stages:
   - test
 
 .website_build: &website_build
-  stage: test # TODO DODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODO restore to  build_and_deploy_website
+  stage: build_and_deploy_website
   image: node:8
   before_script:
     - scripts/install_native_dependencies.sh
@@ -18,18 +18,12 @@ stages:
     - eval $(opam config env)
     - scripts/setup_switch.sh
     - eval $(opam config env)
-    - scripts/debug_show_versions.sh || true
+    - scripts/setup_repos.sh
 
     # install deps for internal documentation
-    - opam install -y odoc
-    # - vendors/opam-repository-tools/rewrite-local-opam-repository.sh
-    # - opam repository add localrepo "file://$PWD/vendors/ligo-opam-repository-local-generated/"
     - scripts/install_vendors_deps.sh
+    - opam install -y odoc
     - scripts/build_ligo_local.sh
-    # - opam install -y --build-test --deps-only ./src/
-    # - dune build -p ligo
-    # TODO: also try instead from time to time:
-    #- (cd ./src/; dune build -p ligo)
 
     # build with odoc
     - dune build @doc
@@ -67,14 +61,10 @@ stages:
     - scripts/install_native_dependencies.sh
     - scripts/install_opam.sh # TODO: or scripts/install_build_environment.sh ?
     - export PATH="/usr/local/bin${PATH:+:}${PATH:-}"
-    - echo "$PATH"; which ocaml || true
     - eval $(opam config env)
-    - echo "$PATH"; which ocaml || true
     - scripts/setup_switch.sh
-    - echo "$PATH"; which ocaml || true
     - eval $(opam config env)
-    - echo "$PATH"; which ocaml || true
-    - scripts/debug_show_versions.sh || true
+    - scripts/setup_repos.sh
 
 local-dune-job:
   <<: *before_script
@@ -115,7 +105,7 @@ remote-repo-job:
 
 # Run a docker build without publishing to the registry
 build-current-docker-image:
-  stage: test # TODO DODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODO restore to  build_docker
+  stage: build_docker
   <<: *docker
   <<: *docker_build
   except:
@@ -125,7 +115,7 @@ build-current-docker-image:
 # When a MR/PR is merged to dev
 # take the previous build and publish it to Docker Hub
 build-and-publish-latest-docker-image:
-  stage: test # TODO DODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODODO restore to  build_and_deploy_docker
+  stage: build_and_deploy_docker
   <<: *docker
   <<: *docker_build
   after_script:
@@ -133,9 +123,6 @@ build-and-publish-latest-docker-image:
     - docker push $LIGO_REGISTRY_IMAGE:next
   only:
     - dev
-    - refactor/new-tezos-deps-ci
-    - refactor/new-tezos-deps-cicliexe
-
 
 # Pages are deployed from both master & dev, be careful not to override 'next'
 # in case something gets merged into 'dev' while releasing.
@@ -144,5 +131,3 @@ pages:
   only:
     - master
     - dev
-    - refactor/new-tezos-deps-ci
-    - refactor/new-tezos-deps-cicliexe
diff --git a/docker/Dockerfile b/docker/Dockerfile
index a67504209..057bd6436 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,5 @@
-# We could use one of the nomadiclab's docker images as a base instead
-# We're using 4.06 instead of 4.06.1, if this causes problems build a custom 4.06.1 image instead
-FROM ocaml/opam2:4.06
+# At the moment, this really means 4.07.1
+FROM ocaml/opam2:4.07
 
 USER root
 
@@ -23,18 +22,14 @@ RUN sh scripts/install_native_dependencies.sh
 # TODO: or scripts/install_build_environment.sh ?
 RUN sh scripts/install_opam.sh
 
-# Creat opam switch
-RUN sh scripts/setup_switch.sh
+# Add tezos repository
+RUN sh scripts/setup_repos.sh
 
 RUN opam update
 
 # Install ligo
 RUN sh scripts/install_vendors_deps.sh
-RUN sh -c pwd
-RUN sh scripts/build_ligo_local.sh
-RUN sh -c pwd
-RUN ls -l
-RUN sh -c 'ls -l /ligo/_build/default/src/bin/cli.exe || true'
+RUN opam install -y ./src
 
 # Use the ligo binary as a default command
-ENTRYPOINT [ "/ligo/_build/default/src/bin/cli.exe" ]
+ENTRYPOINT [ "/home/opam/.opam/4.07/bin/ligo" ]
diff --git a/scripts/build_ligo_local.sh b/scripts/build_ligo_local.sh
index 8ccfd8658..b78e4ffd6 100755
--- a/scripts/build_ligo_local.sh
+++ b/scripts/build_ligo_local.sh
@@ -2,7 +2,7 @@
 set -e
 
 eval $(opam config env)
-dune build src # TODO: make it work with -p ligo
+dune build -p ligo
 
 # TODO: also try instead from time to time:
 #- (cd ./src/; dune build -p ligo)
diff --git a/scripts/debug_show_versions.sh b/scripts/debug_show_versions.sh
deleted file mode 100755
index 1c744a566..000000000
--- a/scripts/debug_show_versions.sh
+++ /dev/null
@@ -1,8 +0,0 @@
-#!/bin/sh
-set -e
-
-echo "$PATH"
-opam --version
-printf '' | ocaml
-opam switch
-
diff --git a/scripts/install_ligo_with_dependencies.sh b/scripts/install_ligo_with_dependencies.sh
deleted file mode 100755
index 78e5d8b62..000000000
--- a/scripts/install_ligo_with_dependencies.sh
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/bin/sh
-set -e
-
-cd src
-opam install . --yes
diff --git a/scripts/install_vendors_deps.sh b/scripts/install_vendors_deps.sh
index 9d2035b45..4c07cf691 100755
--- a/scripts/install_vendors_deps.sh
+++ b/scripts/install_vendors_deps.sh
@@ -2,11 +2,5 @@
 set -e
 
 # Install local dependencies
-opam install -y ./vendors/ligo-utils/simple-utils
-opam install -y ./vendors/ligo-utils/tezos-protocol-alpha
-opam install -y ./vendors/ligo-utils/tezos-protocol-alpha-parameters
-opam install -y ./vendors/ligo-utils/memory-proto-alpha
-opam install -y ./vendors/ligo-utils/tezos-utils/michelson-parser
-opam install -y ./vendors/ligo-utils/tezos-utils
-opam install -y ./vendors/ligo-utils/proto-alpha-utils
-opam install -y getopt ppx_deriving menhir
+opam install -y --deps-only $(find src vendors -name \*.opam)
+opam install -y $(find vendors -name \*.opam)
diff --git a/scripts/setup_dev_switch.sh b/scripts/setup_dev_switch.sh
index 88662c79a..e4cd196cb 100755
--- a/scripts/setup_dev_switch.sh
+++ b/scripts/setup_dev_switch.sh
@@ -2,6 +2,7 @@
 set -e
 
 "$(dirname "$0")"/setup_switch.sh
+"$(dirname "$0")"/setup_repos.sh
 
 opam install -y ocp-indent tuareg merlin alcotest-lwt crowbar
 opam -y user-setup install
diff --git a/scripts/setup_repos.sh b/scripts/setup_repos.sh
new file mode 100755
index 000000000..ae085d353
--- /dev/null
+++ b/scripts/setup_repos.sh
@@ -0,0 +1,6 @@
+#!/bin/sh
+set -e
+set -x
+
+eval $(opam config env)
+opam repo add tezos-opam-repository https://gitlab.com/nomadic-labs/tezos-opam-repository.git
diff --git a/scripts/setup_switch.sh b/scripts/setup_switch.sh
index 070e720a7..ed1e839b2 100755
--- a/scripts/setup_switch.sh
+++ b/scripts/setup_switch.sh
@@ -4,12 +4,3 @@ set -x
 
 printf '' | opam switch create . 4.07.1 # toto ocaml-base-compiler.4.06.1
 eval $(opam config env)
-
-# Add Tezos opam repository
-opam repo add tezos-opam-repository https://gitlab.com/nomadic-labs/tezos-opam-repository.git
-
-# TODO: move this to install_vendor_deps.sh
-# Pin the versions of some dependencies
-opam pin -y zarith 1.7
-opam pin -y ipaddr 3.1.0
-opam pin -y macaddr 3.1.0
diff --git a/src/dune-project b/src/dune-project
index 13109bb9b..ca4766b9c 100644
--- a/src/dune-project
+++ b/src/dune-project
@@ -1,2 +1,2 @@
-(lang dune 1.6)
+(lang dune 1.11)
 (using menhir 2.0)
diff --git a/src/parser/camligo/dune b/src/parser/camligo/dune
index 428f10424..01a68e5cb 100644
--- a/src/parser/camligo/dune
+++ b/src/parser/camligo/dune
@@ -28,7 +28,7 @@
  (targets parser_generated.mly)
  (deps partial_parser.mly pre_parser.mly)
  (action (system "cat pre_parser.mly partial_parser.mly > parser_generated.mly"))
- (mode promote-until-clean)
+ (mode (promote (until-clean) (only *)))
 )
 
 (rule
@@ -43,7 +43,7 @@
  (targets ast_generated.ml)
  (deps generator.exe)
  (action (system "./generator.exe ast > ast_generated.ml"))
- (mode promote-until-clean)
+ (mode (promote (until-clean) (only *)))
 )
 
 ;; Generating Generator
@@ -57,4 +57,10 @@
     lex
   )
   (modules generator)
+  (preprocess
+    (pps
+      ppx_let
+      ppx_deriving.std
+    )
+  )
 )
diff --git a/src/parser/ligodity/dune b/src/parser/ligodity/dune
index 1d26b826f..db5d8a6bc 100644
--- a/src/parser/ligodity/dune
+++ b/src/parser/ligodity/dune
@@ -27,16 +27,16 @@
 ;  (targets Parser.exe)
 ;  (deps ParserMain.exe)
 ;  (action (copy ParserMain.exe Parser.exe))
-;  (mode promote-until-clean))
+;  (mode (promote (until-clean) (only *))))
 
 ;(rule
 ;  (targets Lexer.exe)
 ;  (deps LexerMain.exe)
 ;  (action (copy LexerMain.exe Lexer.exe))
-;  (mode promote-until-clean))
+;  (mode (promote (until-clean) (only *))))
 
 (rule
   (targets Version.ml)
   (action
     (progn (run "sh" "-c" "printf 'let version = \"%s\"'\\\\n \"$(echo UNKNOWN)\" > Version.ml")))
-  (mode promote-until-clean))
+  (mode (promote (until-clean) (only *))))
diff --git a/src/parser/shared/dune b/src/parser/shared/dune
index 7e62da9a8..b9ec951ee 100644
--- a/src/parser/shared/dune
+++ b/src/parser/shared/dune
@@ -25,4 +25,4 @@
   (targets Version.ml)
   (action
     (progn (run "sh" "-c" "printf 'let version = \"%s\"'\\\\n \"$(echo UNKNOWN)\" > Version.ml")))
-  (mode promote-until-clean))
\ No newline at end of file
+  (mode (promote (until-clean) (only *))))
diff --git a/vendors/ligo-utils/proto-alpha-utils/proto-alpha-utils.opam b/vendors/ligo-utils/proto-alpha-utils/proto-alpha-utils.opam
index 4a4e6cfc8..af3f7d9fe 100644
--- a/vendors/ligo-utils/proto-alpha-utils/proto-alpha-utils.opam
+++ b/vendors/ligo-utils/proto-alpha-utils/proto-alpha-utils.opam
@@ -18,7 +18,9 @@ depends: [
   "ezjsonm"
   "hex"
   "hidapi"
-  "ipaddr"
+  # opam does not handle tezos' constraints well (why?)
+  "ipaddr" { >= "3.1.0" & < "4.0.0" }
+  "macaddr" { >= "3.1.0" & < "4.0.0" }
   "irmin"
   "js_of_ocaml"
   "lwt"
@@ -31,7 +33,8 @@ depends: [
   "stdio"
   "uri"
   "uutf"
-  "zarith"
+  # tezos does not constrain their required version
+  "zarith" {= "1.7"}
   "ocplib-json-typed"
   "ocplib-json-typed-bson"
   "tezos-crypto"