diff --git a/manifest/main.ml b/manifest/main.ml
index 9918396a9af7a9cd91122ecff28e9b0f7eef8a56..cb8877795195473d50f052b34d8fe58581268b6f 100644
--- a/manifest/main.ml
+++ b/manifest/main.ml
@@ -941,13 +941,22 @@ let octez_bls12_381_polynomial_internal =
       }
 
 let _octez_bls12_381_polynomial_tests =
-  tests
-    ["main"]
+  tezt
+    [
+      "test_main";
+      "helpers";
+      "test_coefficients";
+      "test_domains";
+      "test_evaluations";
+      "test_pbt";
+      "test_polynomial";
+      "test_srs";
+    ]
     ~path:"src/lib_bls12_381_polynomial/test"
     ~opam:"tezos-bls12-381-polynomial-internal"
     ~deps:
       [
-        alcotest;
+        alcotezt;
         qcheck_alcotest;
         polynomial;
         bisect_ppx;
diff --git a/opam/tezos-bls12-381-polynomial-internal.opam b/opam/tezos-bls12-381-polynomial-internal.opam
index 2a5e92765871e2d5b6a8619c142cae7f1b8395d7..f0f91de7f0318078864b2bdf1ad9eb8ae2143247 100644
--- a/opam/tezos-bls12-381-polynomial-internal.opam
+++ b/opam/tezos-bls12-381-polynomial-internal.opam
@@ -13,7 +13,8 @@ depends: [
   "ppx_repr" { >= "0.6.0" }
   "bls12-381" { >= "6.0.1" & < "6.1.0" }
   "bigstringaf" { >= "0.5.0" }
-  "alcotest" { with-test & >= "1.5.0" }
+  "tezt" { with-test & >= "3.0.0" }
+  "octez-alcotezt" {with-test}
   "qcheck-alcotest" { with-test & >= "0.20" }
   "polynomial" { with-test & >= "0.4.0" & < "0.5.0" }
   "bisect_ppx" { with-test & >= "2.7.0" }
@@ -22,5 +23,6 @@ build: [
   ["rm" "-r" "vendors"]
   ["dune" "build" "-p" name "-j" jobs]
   ["dune" "runtest" "-p" name "-j" jobs] {with-test}
+  ["dune" "build" "@runtezt" "-p" name "-j" jobs] {with-test}
 ]
 synopsis: "Polynomials over BLS12-381 finite field - Temporary vendored version of Octez"
diff --git a/src/lib_bls12_381_polynomial/test/dune b/src/lib_bls12_381_polynomial/test/dune
index 9e557fcb010f4b50c149d47872ef156088010970..495ef546db4c2f003e1d0d787d631560a778c4ec 100644
--- a/src/lib_bls12_381_polynomial/test/dune
+++ b/src/lib_bls12_381_polynomial/test/dune
@@ -1,17 +1,46 @@
 ; This file was automatically generated, do not edit.
 ; Edit file manifest/main.ml instead.
 
-(executable
- (name main)
+(library
+ (name src_lib_bls12_381_polynomial_test_tezt_lib)
+ (instrumentation (backend bisect_ppx))
  (libraries
-  alcotest
+  tezt.core
+  octez-alcotezt
   qcheck-alcotest
   polynomial
   bls12-381
-  tezos-bls12-381-polynomial-internal))
+  tezos-bls12-381-polynomial-internal)
+ (library_flags (:standard -linkall))
+ (flags
+  (:standard)
+  -open Tezt_core
+  -open Tezt_core.Base
+  -open Octez_alcotezt)
+ (modules
+  test_main
+  helpers
+  test_coefficients
+  test_domains
+  test_evaluations
+  test_pbt
+  test_polynomial
+  test_srs))
+
+(executable
+ (name main)
+ (instrumentation (backend bisect_ppx --bisect-sigterm))
+ (libraries
+  src_lib_bls12_381_polynomial_test_tezt_lib
+  tezt)
+ (modules main))
 
 (rule
- (alias runtest)
+ (alias runtezt)
  (package tezos-bls12-381-polynomial-internal)
  (deps srs_zcash_g1_5)
  (action (run %{dep:./main.exe})))
+
+(rule
+ (targets main.ml)
+ (action (with-stdout-to %{targets} (echo "let () = Tezt.Test.run ()"))))
diff --git a/src/lib_bls12_381_polynomial/test/main.ml b/src/lib_bls12_381_polynomial/test/test_main.ml
similarity index 94%
rename from src/lib_bls12_381_polynomial/test/main.ml
rename to src/lib_bls12_381_polynomial/test/test_main.ml
index ec9853b47ccd451588a6680b7da89d0a53a0e52e..c5408f34e9fcb7724f862842888c9420172ebaa3 100644
--- a/src/lib_bls12_381_polynomial/test/main.ml
+++ b/src/lib_bls12_381_polynomial/test/test_main.ml
@@ -23,6 +23,13 @@
 (*                                                                           *)
 (*****************************************************************************)
 
+(** Testing
+    -------
+    Component:  Lib_bls12_381_polynomial
+    Invocation: dune exec src/lib_bls12_381_polynomial/test/main.exe
+    Subject:    Test for bls12_381 polynomial
+*)
+
 let () =
   (* Seed for deterministic pseudo-randomness:
      If the environment variable RANDOM_SEED is set, then its value is used as
@@ -46,7 +53,6 @@ let () =
   Printf.printf "Random seed: %d\n" seed ;
   Random.init seed ;
   Alcotest.run
-    ~verbose:false
     "PlonK"
     [
       ("Domains", Test_domains.tests);
diff --git a/src/lib_bls12_381_polynomial/test/test_srs.ml b/src/lib_bls12_381_polynomial/test/test_srs.ml
index 3f9d53f8561ae7f131c49df7733198ca07e75511..3ae1b0e3430a887a2576451c25758cb0aa078f55 100644
--- a/src/lib_bls12_381_polynomial/test/test_srs.ml
+++ b/src/lib_bls12_381_polynomial/test/test_srs.ml
@@ -163,8 +163,10 @@ let bigstring_of_file filename =
        false
        [|(* [-1] means read the whole file *) -1|]
 
+let path = project_root // Filename.dirname __FILE__
+
 let test_load_from_file () =
-  let bs = bigstring_of_file "srs_zcash_g1_5" in
+  let bs = bigstring_of_file (path // "srs_zcash_g1_5") in
   let max_size = 1 lsl 5 in
   let srs = Srs.of_bigstring bs ~len:max_size |> Result.get_ok in
   assert (Srs.size srs = max_size) ;
@@ -173,7 +175,7 @@ let test_load_from_file () =
   | _ -> assert false
 
 let test_load_from_file_vector () =
-  let bs = bigstring_of_file "srs_zcash_g1_5" in
+  let bs = bigstring_of_file (path // "srs_zcash_g1_5") in
   let srs = Srs.of_bigstring bs ~len:(1 lsl 5) |> Result.get_ok in
   let v =
     [
diff --git a/tezt/tests/dune b/tezt/tests/dune
index b95109ecf5f76fdba62c27b3e8bf1941a6196a80..a9312e3f511d7dad38af8d8a74e6326ab4098b7d 100644
--- a/tezt/tests/dune
+++ b/tezt/tests/dune
@@ -86,6 +86,7 @@
   src_lib_client_base_unix_test_tezt_lib
   src_lib_client_base_test_tezt_lib
   src_lib_clic_test_tezt_lib
+  src_lib_bls12_381_polynomial_test_tezt_lib
   src_lib_benchmark_test_tezt_lib
   src_lib_base_test_tezt_lib)
  (link_flags