diff --git a/.github/workflows/pep8.yml b/.github/workflows/pep8.yml
index d5d0aea9e..4d26a4458 100644
--- a/.github/workflows/pep8.yml
+++ b/.github/workflows/pep8.yml
@@ -18,6 +18,5 @@ jobs:
         uses: actions/checkout@v2
       - name: PEP8
         run: |
-          pip install --upgrade pyproject-flake8
-          flake8 generate_data.py
-          flake8 verify_curves.py
+          pip install --upgrade ruff
+          ruff .
diff --git a/lattice-scripts/compare_curves_and_estimator.py b/lattice-scripts/compare_curves_and_estimator.py
index 6e965f9f7..598d74335 100644
--- a/lattice-scripts/compare_curves_and_estimator.py
+++ b/lattice-scripts/compare_curves_and_estimator.py
@@ -1,10 +1,10 @@
-import sys
-sys.path.insert(1, 'lattice-estimator')
-from estimator import *
-from sage.all import oo, save, load, ceil, floor
+from estimator import LWE, ND
+from sage.all import oo, load, floor
 from generate_data import estimate, get_security_level
 import argparse
 import os
+import sys
+sys.path.insert(1, 'lattice-estimator')
 
 
 LOG_N_MAX = 17 + 1
@@ -98,13 +98,13 @@ def compare_curve_and_estimator(security_level, log_q, curves_dir):
 
     # step 2. check security of those points
     for lwe_dim in lwe_dimensions:
-        print(f"-------------------------")
+        print("-------------------------")
         # (i) get stddev with current curves
         predicted_stddev = estimate_stddev_with_current_curve(curve, lwe_dim, log_q)
         # (ii) estimate up-to-date security
         predicted_security = estimate_security_with_lattice_estimator(lwe_dim, predicted_stddev, log_q)
 
-        print(f"-------------------------")
+        print("-------------------------")
         print(f"lwe dim: {lwe_dim}")
         print(f"stddev: {predicted_stddev}")
         print(f"Security: {predicted_security}")
diff --git a/lattice-scripts/generate_data.py b/lattice-scripts/generate_data.py
index 735213300..5d2693d2f 100644
--- a/lattice-scripts/generate_data.py
+++ b/lattice-scripts/generate_data.py
@@ -1,11 +1,12 @@
-import sys
-sys.path.insert(1, 'lattice-estimator')
-from estimator import *
-from sage.all import oo, save, load, ceil
+from estimator import RC, LWE, ND
+from sage.all import oo, save, load
 from math import log2
 import multiprocessing
 import argparse
 import os
+import sys
+sys.path.insert(1, 'lattice-estimator')
+
 
 old_models_sobj = ""
 
@@ -149,8 +150,8 @@ def generate_parameter_matrix(
     (sd_min, sd_max) = sd_range
     for lam in target_security_levels:
         for sd in range(sd_min, sd_max + 1):
-            print("run for {}".format(lam, sd))
-            Xe_new = nd.NoiseDistribution.DiscreteGaussian(2 ** sd)
+            print(f"run for {lam} {sd}")
+            Xe_new = ND.NoiseDistribution.DiscreteGaussian(2 ** sd)
             (params_out, sec) = automated_param_select_n(
                 params_in.updated(Xe=Xe_new), target_security=lam
             )
@@ -190,7 +191,7 @@ def generate_zama_curves64(
         inputs = [
             (init_params, (val, val), target_security_levels, name) for val in vals
         ]
-        res = pool.starmap(generate_parameter_matrix, inputs)
+        _res = pool.starmap(generate_parameter_matrix, inputs)
 
     return "done"
 
diff --git a/lattice-scripts/verify_curves.py b/lattice-scripts/verify_curves.py
index 85af038c2..d63824511 100644
--- a/lattice-scripts/verify_curves.py
+++ b/lattice-scripts/verify_curves.py
@@ -95,7 +95,7 @@ def generate_and_verify(security_levels, log_q, curves_dir, name="verified_curve
             json.append({"slope": a_sec, "bias": b_sec - log_q, "security_level": sec, "minimal_lwe_dimension": n_alpha})
             success.append((a_sec, b_sec - log_q, sec, a_sec, b_sec))
         else:
-            fail.append(x)
+            fail.append(sec)
 
     save(success, os.path.join(curves_dir, name))
 
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 000000000..54825080d
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,2 @@
+[tool.ruff]
+line-length = 169