diff --git a/.github/workflows/redo_regressions.yml b/.github/workflows/redo_regressions.yml
new file mode 100644
index 0000000000..c7111631aa
--- /dev/null
+++ b/.github/workflows/redo_regressions.yml
@@ -0,0 +1,64 @@
+name: Redo regressions
+
+# start job only for PRs when a label is added.
+on:
+  pull_request:
+    types: [labeled]
+
+# some general variables
+env:
+  # https://keras.io/getting_started/faq/#how-can-i-obtain-reproducible-results-using-keras-during-development
+  PYTHONHASHSEED: "0"
+
+jobs:
+  build:
+    if: contains(github.event.pull_request.labels.*.name, 'redo-regressions')
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ["3.11"]
+        include:
+          - os: ubuntu-latest
+            CONDA_OS: linux-64
+      fail-fast: false
+    runs-on: ${{ matrix.os }}
+    env:
+      NETRC_FILE: ${{ secrets.NETRC_FILE }}
+      NNPDF_SSH_KEY: ${{ secrets.NNPDF_SSH_KEY }}
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+        ref: ${{ github.event.pull_request.head.ref }}
+
+    - uses: conda-incubator/setup-miniconda@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+        use-mamba: true
+        auto-update-conda: true
+        activate-environment: test
+    - name: Setup conda and install LHAPDF and pandoc
+      shell: bash -l {0}
+      run: |
+        echo "$NETRC_FILE" | base64 --decode > ~/.netrc
+        conda config --remove channels defaults
+        conda config --append channels conda-forge
+        conda config --prepend channels https://packages.nnpdf.science/public
+        conda config --set show_channel_urls true
+        conda install lhapdf pandoc
+    - name: Install nnpdf with testing and qed extras
+      shell: bash -l {0}
+      run: |
+        pip install .[qed,tests]
+    - name: Regenerate regressions
+      shell: bash -l {0}
+      run: |
+        pytest extra_tests/regression_checks.py --regenerate True
+    - name: Commit
+      shell: bash -l {0}
+      run: |
+        git config user.name "Redo regressions bot"
+        git add extra_tests/regression_fits/*
+        git status
+        git commit -m "Automatically regenerated regressions from PR ${{ github.event.number }}, branch ${{ github.event.pull_request.head.ref }}."
+        git push origin "${{ github.event.pull_request.head.ref }}"
diff --git a/extra_tests/conftest.py b/extra_tests/conftest.py
new file mode 100644
index 0000000000..78ca171de3
--- /dev/null
+++ b/extra_tests/conftest.py
@@ -0,0 +1,14 @@
+"""
+This enables the use of a command line argument to set regenerate, which is used to autmate the
+regeneration of the regression data.
+"""
+
+
+def pytest_addoption(parser):
+    parser.addoption("--regenerate", action="store", default=False)
+
+
+def pytest_generate_tests(metafunc):
+    option_value = metafunc.config.option.regenerate
+    if 'regenerate' in metafunc.fixturenames and option_value is not None:
+        metafunc.parametrize("regenerate", [option_value])
diff --git a/extra_tests/readme.md b/extra_tests/readme.md
index 2d748316aa..8e912bca48 100644
--- a/extra_tests/readme.md
+++ b/extra_tests/readme.md
@@ -10,7 +10,7 @@ In that case the following recipe shall be applied:
 2. If the changes look due to numerics, run a full production-like fit (4.0 baseline, 100 replicas, etc)
 3. Review and finish the PR normally, and then, before merge:
   a. Rebase on top of master
-  b. Perform one commit with the update to the regression tests
+  b. Add the 'redo-regressions' label to the PR to automatically regenerate the regressions
 
 If instead, the changes are supposed to change the numerical values of the result (e.g., a change in the treatment of seeds)
 please document it in the release notes for the following tag.
diff --git a/extra_tests/regression_checks.py b/extra_tests/regression_checks.py
index 7d4dfcb817..de8da2cabe 100644
--- a/extra_tests/regression_checks.py
+++ b/extra_tests/regression_checks.py
@@ -2,14 +2,14 @@
     Regression tests
 """
 
-from n3fit.tests.test_fit import check_fit_results, EXE
 import pathlib
-from reportengine.compat import yaml
 import shutil
 import subprocess as sp
 
 import pytest
 
+from n3fit.tests.test_fit import EXE, check_fit_results
+from reportengine.compat import yaml
 
 REGRESSION_FOLDER = pathlib.Path(__file__).with_name("regression_fits")
 
@@ -29,7 +29,7 @@
 
 
 @pytest.mark.parametrize("runcard,replica", runcard_and_replicas.items())
-def test_regression_fit(tmp_path, runcard, replica):
+def test_regression_fit(tmp_path, runcard, replica, regenerate):
     runcard_name = f"{runcard}.yml"
     runcard_file = REGRESSION_FOLDER / runcard_name
     shutil.copy(runcard_file, tmp_path)
@@ -41,4 +41,6 @@ def test_regression_fit(tmp_path, runcard, replica):
     sp.run(f"{EXE} {runcard_name} {replica}".split(), cwd=tmp_path, check=True)
     old_json_file = REGRESSION_FOLDER / f"{runcard}_{replica}.json"
 
-    check_fit_results(tmp_path, runcard, replica, old_json_file, regenerate=False, rel_error=1e-2)
+    check_fit_results(
+        tmp_path, runcard, replica, old_json_file, regenerate=regenerate, rel_error=1e-2
+    )
diff --git a/extra_tests/regression_fits/central_16.json b/extra_tests/regression_fits/central_16.json
index 0376b99305..8954787d8c 100644
--- a/extra_tests/regression_fits/central_16.json
+++ b/extra_tests/regression_fits/central_16.json
@@ -63,32 +63,32 @@
     1.1961095151498038
   ],
   "integrability": [
-    0.0009203124718642486,
+    0.0009203124718646927,
     0.0009203124718629718,
     4.8332231357695044e-05,
-    0.4625758156180382,
-    0.006963429623282114
+    0.4625758156180373,
+    0.0069634296232816695
   ],
   "timing": {
     "walltime": {
-      "Total": 30.79029417037964,
+      "Total": 18.60609221458435,
       "start": 0.0,
-      "replica_set": 0.430037260055542,
-      "replica_fitted": 30.790075302124023,
-      "replica_set_to_replica_fitted": 30.36003804206848
+      "replica_set": 0.3607151508331299,
+      "replica_fitted": 18.606019735336304,
+      "replica_set_to_replica_fitted": 18.245304584503174
     },
     "cputime": {
-      "Total": 58.881718801999995,
+      "Total": 20.6525949,
       "start": 0.0,
-      "replica_set": 5.264737561999997,
-      "replica_fitted": 58.881475626,
-      "replica_set_to_replica_fitted": 53.616738064
+      "replica_set": 0.6791323,
+      "replica_fitted": 20.6525204,
+      "replica_set_to_replica_fitted": 19.9733881
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/diagonal_45.json b/extra_tests/regression_fits/diagonal_45.json
index a3acbfeed3..8b87ceb346 100644
--- a/extra_tests/regression_fits/diagonal_45.json
+++ b/extra_tests/regression_fits/diagonal_45.json
@@ -58,37 +58,37 @@
   "arc_lengths": [
     1.3182267178222185,
     1.54441465374414,
-    1.179107351893619,
+    1.1791073518936193,
     1.0015316488813237,
     1.2179106362142496
   ],
   "integrability": [
-    0.0008988642075570819,
+    0.000898864207557748,
     0.0008988642075570263,
     4.724649568210726e-05,
-    0.4626152291893959,
-    0.0070505898911492615
+    0.462615229189395,
+    0.007050589891148817
   ],
   "timing": {
     "walltime": {
-      "Total": 28.264042139053345,
+      "Total": 17.62032151222229,
       "start": 0.0,
-      "replica_set": 0.4277496337890625,
-      "replica_fitted": 28.26386070251465,
-      "replica_set_to_replica_fitted": 27.836111068725586
+      "replica_set": 0.3764665126800537,
+      "replica_fitted": 17.620244026184082,
+      "replica_set_to_replica_fitted": 17.24377751350403
     },
     "cputime": {
-      "Total": 56.531395771,
+      "Total": 19.6138915,
       "start": 0.0,
-      "replica_set": 5.303023015999997,
-      "replica_fitted": 56.53119243,
-      "replica_set_to_replica_fitted": 51.228169414
+      "replica_set": 0.6932296000000004,
+      "replica_fitted": 19.6138119,
+      "replica_set_to_replica_fitted": 18.9205823
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/feature_scaling_81.json b/extra_tests/regression_fits/feature_scaling_81.json
index 75faa050c4..fa77d5a984 100644
--- a/extra_tests/regression_fits/feature_scaling_81.json
+++ b/extra_tests/regression_fits/feature_scaling_81.json
@@ -56,14 +56,14 @@
   "chi2": 1.4108951091766357,
   "pos_state": "POS_VETO",
   "arc_lengths": [
-    1.9705579690885775,
+    1.9705579690885773,
     1.512324164715868,
     1.2608150353204404,
     1.1147020004036432,
     2.925581113420889
   ],
   "integrability": [
-    0.0038688098720734143,
+    0.0038688098720738584,
     0.003868809872073914,
     2.2851325695821822e-05,
     0.05472333077341307,
@@ -71,24 +71,24 @@
   ],
   "timing": {
     "walltime": {
-      "Total": 28.482715845108032,
+      "Total": 17.96898365020752,
       "start": 0.0,
-      "replica_set": 0.42058467864990234,
-      "replica_fitted": 28.482331037521362,
-      "replica_set_to_replica_fitted": 28.06174635887146
+      "replica_set": 0.3639094829559326,
+      "replica_fitted": 17.968825101852417,
+      "replica_set_to_replica_fitted": 17.604915618896484
     },
     "cputime": {
-      "Total": 53.414345739000005,
+      "Total": 19.9091685,
       "start": 0.0,
-      "replica_set": 5.313881866999999,
-      "replica_fitted": 53.413937684,
-      "replica_set_to_replica_fitted": 48.100055817
+      "replica_set": 0.6803557000000007,
+      "replica_fitted": 19.9090083,
+      "replica_set_to_replica_fitted": 19.2286526
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/flavour_29.json b/extra_tests/regression_fits/flavour_29.json
index 0468433155..bc5cc8c99d 100644
--- a/extra_tests/regression_fits/flavour_29.json
+++ b/extra_tests/regression_fits/flavour_29.json
@@ -63,32 +63,32 @@
     0.9907081134354656
   ],
   "integrability": [
-    0.46764282882213526,
+    0.4676428288221359,
     0.46764282882213587,
     0.08090896345675005,
-    0.1003280878067017,
+    0.10032808780670167,
     0.5176757127046587
   ],
   "timing": {
     "walltime": {
-      "Total": 9.50145959854126,
+      "Total": 7.240033864974976,
       "start": 0.0,
-      "replica_set": 0.4137749671936035,
-      "replica_fitted": 9.501240968704224,
-      "replica_set_to_replica_fitted": 9.08746600151062
+      "replica_set": 0.37552475929260254,
+      "replica_fitted": 7.239804267883301,
+      "replica_set_to_replica_fitted": 6.864279508590698
     },
     "cputime": {
-      "Total": 17.63484543,
+      "Total": 7.8813866,
       "start": 0.0,
-      "replica_set": 5.07142004,
-      "replica_fitted": 17.634602875,
-      "replica_set_to_replica_fitted": 12.563182835
+      "replica_set": 0.6917157000000005,
+      "replica_fitted": 7.8811553000000005,
+      "replica_set_to_replica_fitted": 7.1894396
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/no_lagrange_27.json b/extra_tests/regression_fits/no_lagrange_27.json
index f4b36c47d9..aae13af206 100644
--- a/extra_tests/regression_fits/no_lagrange_27.json
+++ b/extra_tests/regression_fits/no_lagrange_27.json
@@ -58,37 +58,37 @@
   "arc_lengths": [
     1.3221023191915289,
     1.4870345587210063,
-    1.1735323019190387,
+    1.1735323019190385,
     1.0005950030908517,
     1.221984399084671
   ],
   "integrability": [
-    0.0009426986289349792,
+    0.0009426986289356454,
     0.0009426986289332584,
     5.00080153632565e-05,
-    0.47462750226259187,
-    0.007130859827156
+    0.474627502262591,
+    0.007130859827155556
   ],
   "timing": {
     "walltime": {
-      "Total": 33.483086824417114,
+      "Total": 21.26565957069397,
       "start": 0.0,
-      "replica_set": 0.40949511528015137,
-      "replica_fitted": 33.48285508155823,
-      "replica_set_to_replica_fitted": 33.073359966278076
+      "replica_set": 0.365405797958374,
+      "replica_fitted": 21.265546083450317,
+      "replica_set_to_replica_fitted": 20.900140285491943
     },
     "cputime": {
-      "Total": 57.29150730599999,
+      "Total": 23.1746251,
       "start": 0.0,
-      "replica_set": 5.309074099,
-      "replica_fitted": 57.291249822999994,
-      "replica_set_to_replica_fitted": 51.982175723999994
+      "replica_set": 0.6833834000000003,
+      "replica_fitted": 23.1745104,
+      "replica_set_to_replica_fitted": 22.491127
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/no_msr_92.json b/extra_tests/regression_fits/no_msr_92.json
index 188d277639..fc1f4dffcf 100644
--- a/extra_tests/regression_fits/no_msr_92.json
+++ b/extra_tests/regression_fits/no_msr_92.json
@@ -63,32 +63,32 @@
     1.1751094831216375
   ],
   "integrability": [
-    0.0009919884760163575,
+    0.0009919884760162465,
     0.000991988476016628,
     4.665318033393595e-05,
-    0.4762776866555214,
-    0.007486370101105172
+    0.4762776866555213,
+    0.007486370101105047
   ],
   "timing": {
     "walltime": {
-      "Total": 47.275179624557495,
+      "Total": 29.779701471328735,
       "start": 0.0,
-      "replica_set": 0.4134683609008789,
-      "replica_fitted": 47.27485942840576,
-      "replica_set_to_replica_fitted": 46.86139106750488
+      "replica_set": 0.37215209007263184,
+      "replica_fitted": 29.779524326324463,
+      "replica_set_to_replica_fitted": 29.40737223625183
     },
     "cputime": {
-      "Total": 75.49572824999998,
+      "Total": 31.8365965,
       "start": 0.0,
-      "replica_set": 5.314293298999999,
-      "replica_fitted": 75.49538364399999,
-      "replica_set_to_replica_fitted": 70.181090345
+      "replica_set": 0.6885683,
+      "replica_fitted": 31.8364179,
+      "replica_set_to_replica_fitted": 31.1478496
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/no_sumrules_18.json b/extra_tests/regression_fits/no_sumrules_18.json
index 8934996ae9..0c041c1598 100644
--- a/extra_tests/regression_fits/no_sumrules_18.json
+++ b/extra_tests/regression_fits/no_sumrules_18.json
@@ -67,28 +67,28 @@
     0.00022732430079495936,
     1.0915414520598632e-05,
     0.4772165492177008,
-    0.0018179940525438198
+    0.001817994052543806
   ],
   "timing": {
     "walltime": {
-      "Total": 37.01521110534668,
+      "Total": 25.12443494796753,
       "start": 0.0,
-      "replica_set": 0.4171748161315918,
-      "replica_fitted": 37.014857053756714,
-      "replica_set_to_replica_fitted": 36.59768223762512
+      "replica_set": 0.3976583480834961,
+      "replica_fitted": 25.12428593635559,
+      "replica_set_to_replica_fitted": 24.726627588272095
     },
     "cputime": {
-      "Total": 60.474931141,
+      "Total": 27.074280200000004,
       "start": 0.0,
-      "replica_set": 5.3048759919999995,
-      "replica_fitted": 60.47455261100001,
-      "replica_set_to_replica_fitted": 55.16967661900001
+      "replica_set": 0.7145655,
+      "replica_fitted": 27.074129300000003,
+      "replica_set_to_replica_fitted": 26.359563800000004
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/no_vsr_54.json b/extra_tests/regression_fits/no_vsr_54.json
index 4fbd7f8f5a..beafc32837 100644
--- a/extra_tests/regression_fits/no_vsr_54.json
+++ b/extra_tests/regression_fits/no_vsr_54.json
@@ -56,39 +56,39 @@
   "chi2": 2.158350944519043,
   "pos_state": "POS_VETO",
   "arc_lengths": [
-    1.3149937623522563,
+    1.314993762352256,
     1.4737261989061683,
     1.0007785798672333,
     0.9905270817090487,
     1.0083087444694132
   ],
   "integrability": [
-    0.00021743857451045345,
+    0.00021743857451178572,
     0.00021743857450995385,
     1.091591110413681e-05,
-    0.4652469605207441,
-    0.0017131903587130903
+    0.46524696052074344,
+    0.0017131903587124242
   ],
   "timing": {
     "walltime": {
-      "Total": 30.30263924598694,
+      "Total": 18.69965434074402,
       "start": 0.0,
-      "replica_set": 0.4247448444366455,
-      "replica_fitted": 30.30237579345703,
-      "replica_set_to_replica_fitted": 29.877630949020386
+      "replica_set": 0.388653039932251,
+      "replica_fitted": 18.699567556381226,
+      "replica_set_to_replica_fitted": 18.310914516448975
     },
     "cputime": {
-      "Total": 58.57155645499999,
+      "Total": 20.752095100000002,
       "start": 0.0,
-      "replica_set": 5.233104689999998,
-      "replica_fitted": 58.571267613,
-      "replica_set_to_replica_fitted": 53.338162923000006
+      "replica_set": 0.7052243000000011,
+      "replica_fitted": 20.7520065,
+      "replica_set_to_replica_fitted": 20.0467822
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/normal_fit_72.json b/extra_tests/regression_fits/normal_fit_72.json
index bf31a4714f..f02f237d23 100644
--- a/extra_tests/regression_fits/normal_fit_72.json
+++ b/extra_tests/regression_fits/normal_fit_72.json
@@ -56,39 +56,39 @@
   "chi2": 2.4093308448791504,
   "pos_state": "POS_PASS",
   "arc_lengths": [
-    1.3077516647379446,
+    1.3077516647379444,
     1.2693092406788389,
     1.1686582018448737,
     1.0014198240309733,
     1.1888768971089245
   ],
   "integrability": [
-    0.0009303889601149917,
+    0.0009303889601154358,
     0.0009303889601145476,
     4.6177159219396025e-05,
-    0.48856043070554733,
-    0.00679302011849281
+    0.4885604307055469,
+    0.0067930201184924766
   ],
   "timing": {
     "walltime": {
-      "Total": 41.881762981414795,
+      "Total": 24.668087005615234,
       "start": 0.0,
-      "replica_set": 0.4757258892059326,
-      "replica_fitted": 41.881460189819336,
-      "replica_set_to_replica_fitted": 41.4057343006134
+      "replica_set": 0.37459492683410645,
+      "replica_fitted": 24.667866468429565,
+      "replica_set_to_replica_fitted": 24.29327154159546
     },
     "cputime": {
-      "Total": 78.09539571100001,
+      "Total": 27.1846608,
       "start": 0.0,
-      "replica_set": 5.260408395999995,
-      "replica_fitted": 78.09507449899999,
-      "replica_set_to_replica_fitted": 72.834666103
+      "replica_set": 0.688195799999999,
+      "replica_fitted": 27.1844376,
+      "replica_set_to_replica_fitted": 26.4962418
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/extra_tests/regression_fits/trainable_prepro_61.json b/extra_tests/regression_fits/trainable_prepro_61.json
index 4ee7ea2b43..16192808ac 100644
--- a/extra_tests/regression_fits/trainable_prepro_61.json
+++ b/extra_tests/regression_fits/trainable_prepro_61.json
@@ -58,37 +58,37 @@
   "arc_lengths": [
     1.0440971744004135,
     1.528025761219303,
-    1.0033084238004522,
+    1.003308423800452,
     0.9979762394415533,
     1.419281059365766
   ],
   "integrability": [
-    0.11098538525402649,
+    0.1109853852540276,
     0.11098538525402574,
     0.0002027637756321643,
-    0.008434453862719238,
-    0.0018140712927556812
+    0.008434453862718683,
+    0.0018140712927553482
   ],
   "timing": {
     "walltime": {
-      "Total": 31.576780557632446,
+      "Total": 19.53623390197754,
       "start": 0.0,
-      "replica_set": 0.41596508026123047,
-      "replica_fitted": 31.576586723327637,
-      "replica_set_to_replica_fitted": 31.160621643066406
+      "replica_set": 0.4048268795013428,
+      "replica_fitted": 19.536094903945923,
+      "replica_set_to_replica_fitted": 19.13126802444458
     },
     "cputime": {
-      "Total": 59.362012572,
+      "Total": 21.8017812,
       "start": 0.0,
-      "replica_set": 5.353041050999998,
-      "replica_fitted": 59.361791798,
-      "replica_set_to_replica_fitted": 54.008750747
+      "replica_set": 0.7218703000000009,
+      "replica_fitted": 21.8016403,
+      "replica_set_to_replica_fitted": 21.079769999999996
     }
   },
   "version": {
     "tensorflow": "2.15.0, mkl=??",
     "numpy": "1.24.4",
-    "nnpdf": "4.0.8.post113.dev0+e1b5f2cd5.dirty",
-    "validphys": "4.0.8.post113.dev0+e1b5f2cd5.dirty"
+    "nnpdf": "4.0.8.post168.dev0+5adb0639b",
+    "validphys": "4.0.8.post168.dev0+5adb0639b"
   }
 }
\ No newline at end of file
diff --git a/n3fit/src/n3fit/tests/test_fit.py b/n3fit/src/n3fit/tests/test_fit.py
index 1427bf17e8..1ec36aa76c 100644
--- a/n3fit/src/n3fit/tests/test_fit.py
+++ b/n3fit/src/n3fit/tests/test_fit.py
@@ -86,7 +86,6 @@ def check_fit_results(
     if regenerate:
         shutil.copy2(new_expgrid_file, old_expgrid_file)
         shutil.copy2(new_json_file, regression_json)
-        raise FileNotFoundError("Regression test regenerated, no files to check against")
 
     # Compare json results
     new_json = _load_json(new_json_file)