diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index e8ee0c537b83e..4a12e04307970 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -593,6 +593,34 @@ test-suite:edge+4.11+trunk+dune:
     expire_in: 2 week
   allow_failure: true
 
+test-suite:edge+coverage:
+  stage: stage-1
+  dependencies: []
+  script:
+    - ulimit -s 16384
+    - opam update
+    - opam remove opam-format dune-release # Broken so it seems
+    - opam pin add -n dune-configurator --dev
+    - opam pin add -n dune-private-libs --dev
+    - opam pin add dune --dev
+    - opam install bisect_ppx
+    - dune build --workspace dev/dune-workspace.bisect @runtest
+    - find _build/coverage/ -name *.coverage -size 0 -exec rm {} \; # workaround truncation bug
+    - bisect-ppx-report html --source-path=_build/coverage --coverage-path=_build/coverage -o _build/coq-coverage --title="Coq's Test suite"
+    # TODO: deploy
+    # bisect-ppx-report send-to Codecov
+  variables:
+    OPAM_SWITCH: edge
+    OPAM_VARIANT: "+flambda"
+  artifacts:
+    name: "$CI_JOB_NAME.logs"
+    when: always
+    paths:
+      - _build/log
+      - _build/coq-coverage
+    expire_in: 2 week
+  allow_failure: true
+
 test-suite:base+async:
   extends: .test-suite-template
   dependencies:
diff --git a/checker/dune b/checker/dune
index af7d4f2923a9e..61aff64dedf28 100644
--- a/checker/dune
+++ b/checker/dune
@@ -7,6 +7,7 @@
  (synopsis "Coq's Standalone Proof Checker")
  (modules :standard \ coqchk votour)
  (wrapped true)
+ (bisect_ppx)
  (libraries coq.kernel))
 
 (executable
@@ -16,6 +17,7 @@
  (package coq)
  (modules coqchk)
  (flags :standard -open Coq_checklib)
+ (bisect_ppx)
  (libraries coq_checklib))
 
 (executable
diff --git a/clib/dune b/clib/dune
index 10c75d6aa251c..a546b2cb388a1 100644
--- a/clib/dune
+++ b/clib/dune
@@ -3,6 +3,7 @@
  (synopsis "Coq's Utility Library [general purpose]")
  (public_name coq.clib)
  (wrapped false)
+ (bisect_ppx)
  (modules_without_implementation cSig)
  (libraries str unix threads))
 
diff --git a/config/dune b/config/dune
index bf1aa4f471b9c..5cb241c2b5509 100644
--- a/config/dune
+++ b/config/dune
@@ -1,6 +1,7 @@
 (library
  (name config)
  (synopsis "Coq Configuration Variables")
+ (bisect_ppx)
  (public_name coq.config)
  (wrapped false))
 
diff --git a/dev/dune-workspace.bisect b/dev/dune-workspace.bisect
new file mode 100644
index 0000000000000..bf84879b479f8
--- /dev/null
+++ b/dev/dune-workspace.bisect
@@ -0,0 +1,6 @@
+(lang dune 2.6)
+
+(context
+ (default
+  (name coverage)
+  (bisect_enabled true)))
diff --git a/dune-project b/dune-project
index 873d03e8ddb93..f557ba5a2e64b 100644
--- a/dune-project
+++ b/dune-project
@@ -1,6 +1,7 @@
-(lang dune 2.5)
+(lang dune 2.6)
 (name coq)
 (using coq 0.2)
+(using bisect_ppx 1.0)
 
 (formatting
  (enabled_for ocaml))
diff --git a/engine/dune b/engine/dune
index e2b7ab9c876f9..f4e63b49f47b3 100644
--- a/engine/dune
+++ b/engine/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Tactic Engine")
  (public_name coq.engine)
  (wrapped false)
+ (bisect_ppx)
  (libraries library))
diff --git a/gramlib/dune b/gramlib/dune
index 8ca6aff25a5b4..2e93414da62d0 100644
--- a/gramlib/dune
+++ b/gramlib/dune
@@ -1,4 +1,5 @@
 (library
  (name gramlib)
  (public_name coq.gramlib)
+ (bisect_ppx)
  (libraries coq.lib))
diff --git a/interp/dune b/interp/dune
index e9ef7ba99aa3b..95ac5bc7dddf2 100644
--- a/interp/dune
+++ b/interp/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Syntactic Interpretation for AST [notations, implicits]")
  (public_name coq.interp)
  (wrapped false)
+ (bisect_ppx)
  (libraries pretyping))
diff --git a/kernel/dune b/kernel/dune
index 5f7502ef6bd86..c7ee1bc4cba7a 100644
--- a/kernel/dune
+++ b/kernel/dune
@@ -4,6 +4,7 @@
  (public_name coq.kernel)
  (wrapped false)
  (modules (:standard \ genOpcodeFiles uint63_31 uint63_63))
+ (bisect_ppx)
  (libraries lib byterun dynlink))
 
 (executable
diff --git a/lib/dune b/lib/dune
index 83783f9b5cf72..dd3d84124f23e 100644
--- a/lib/dune
+++ b/lib/dune
@@ -3,5 +3,6 @@
  (synopsis "Coq's Utility Library [coq-specific]")
  (public_name coq.lib)
  (wrapped false)
+ (bisect_ppx)
  (modules_without_implementation xml_datatype)
  (libraries coq.clib coq.config))
diff --git a/library/dune b/library/dune
index 344fad5a75f21..0a0c0e8ba2544 100644
--- a/library/dune
+++ b/library/dune
@@ -3,6 +3,7 @@
  (synopsis "Coq's Loadable Libraries (vo) Support")
  (public_name coq.library)
  (wrapped false)
+ (bisect_ppx)
  (libraries kernel))
 
 (documentation
diff --git a/parsing/dune b/parsing/dune
index 8a31434101d40..78415940449ef 100644
--- a/parsing/dune
+++ b/parsing/dune
@@ -2,6 +2,7 @@
  (name parsing)
  (public_name coq.parsing)
  (wrapped false)
+ (bisect_ppx)
  (libraries coq.gramlib interp))
 
 (coq.pp (modules g_prim g_constr))
diff --git a/plugins/ltac/dune b/plugins/ltac/dune
index 6558ecbfe81ef..4dc2bec25a8ee 100644
--- a/plugins/ltac/dune
+++ b/plugins/ltac/dune
@@ -3,6 +3,7 @@
  (public_name coq.plugins.ltac)
  (synopsis "Coq's LTAC tactic language")
  (modules :standard \ tauto)
+ (bisect_ppx)
  (libraries coq.stm))
 
 (library
@@ -10,6 +11,7 @@
  (public_name coq.plugins.tauto)
  (synopsis "Coq's tauto tactic")
  (modules tauto)
+ (bisect_ppx)
  (libraries coq.plugins.ltac))
 
 (coq.pp (modules extratactics g_tactic  g_rewrite g_eqdecide g_auto g_obligations g_ltac profile_ltac_tactics coretactics g_class extraargs))
diff --git a/plugins/ssr/dune b/plugins/ssr/dune
index a117d09a16b47..264cd8d237fa3 100644
--- a/plugins/ssr/dune
+++ b/plugins/ssr/dune
@@ -3,6 +3,7 @@
  (public_name coq.plugins.ssreflect)
  (synopsis "Coq's ssreflect plugin")
  (modules_without_implementation ssrast)
+ (bisect_ppx)
  (flags :standard -open Gramlib)
  (libraries coq.plugins.ssrmatching))
 
diff --git a/pretyping/dune b/pretyping/dune
index 14bce92de10c8..8890242a445b9 100644
--- a/pretyping/dune
+++ b/pretyping/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Type Inference Component (Pretyper)")
  (public_name coq.pretyping)
  (wrapped false)
+ (bisect_ppx)
  (libraries engine))
diff --git a/printing/dune b/printing/dune
index 3392342165568..48c5abf3ba2f4 100644
--- a/printing/dune
+++ b/printing/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Term Pretty Printing Library")
  (public_name coq.printing)
  (wrapped false)
+ (bisect_ppx)
  (libraries parsing proofs))
diff --git a/proofs/dune b/proofs/dune
index 36e979999856c..3319213b01888 100644
--- a/proofs/dune
+++ b/proofs/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Higher-level Refinement Proof Engine and Top-level Proof Structure")
  (public_name coq.proofs)
  (wrapped false)
+ (bisect_ppx)
  (libraries pretyping))
diff --git a/stm/dune b/stm/dune
index c369bd00fb1c5..798f83ddb0e93 100644
--- a/stm/dune
+++ b/stm/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Document Manager and Proof Checking Scheduler")
  (public_name coq.stm)
  (wrapped false)
+ (bisect_ppx)
  (libraries vernac))
diff --git a/tactics/dune b/tactics/dune
index 908dde52536dd..93447ac333f21 100644
--- a/tactics/dune
+++ b/tactics/dune
@@ -3,4 +3,5 @@
  (synopsis "Coq's Core Tactics [ML implementation]")
  (public_name coq.tactics)
  (wrapped false)
+ (bisect_ppx)
  (libraries printing))
diff --git a/topbin/dune b/topbin/dune
index 46052c81e524b..8b4e84bedaad3 100644
--- a/topbin/dune
+++ b/topbin/dune
@@ -8,6 +8,7 @@
  (public_name coqtop.opt)
  (package coq)
  (modules coqtop_bin)
+ (bisect_ppx)
  (libraries coq.toplevel)
  (link_flags -linkall))
 
@@ -25,6 +26,7 @@
  (public_name coqc)
  (package coq)
  (modules coqc_bin)
+ (bisect_ppx)
  (libraries coq.toplevel)
  (modes native byte)
  ; Adding -ccopt -flto to links options could be interesting, however,
diff --git a/toplevel/dune b/toplevel/dune
index 2d64ae303c534..d641bfa9b85ab 100644
--- a/toplevel/dune
+++ b/toplevel/dune
@@ -3,6 +3,7 @@
  (public_name coq.toplevel)
  (synopsis "Coq's Interactive Shell [terminal-based]")
  (wrapped false)
+ (bisect_ppx)
  (libraries num coq.stm))
 ; Coqlevel provides the `Num` library to plugins, we could also use
 ; -linkall in the plugins file, to be discussed.
diff --git a/vernac/dune b/vernac/dune
index ba361b137710e..19c38169e92e1 100644
--- a/vernac/dune
+++ b/vernac/dune
@@ -3,6 +3,7 @@
  (synopsis "Coq's Vernacular Language")
  (public_name coq.vernac)
  (wrapped false)
+ (bisect_ppx)
  (libraries tactics parsing))
 
 (coq.pp (modules g_proofs g_vernac))