diff --git a/soliket/bias/bias.py b/soliket/bias/bias.py
index eab8494f..d113b7b6 100644
--- a/soliket/bias/bias.py
+++ b/soliket/bias/bias.py
@@ -86,7 +86,7 @@ def get_Pk_gm_grid(self) -> dict:
 
 
 class Linear_bias(Bias):
-    """
+    r"""
     :Synopsis: Linear bias model.
 
     Has one free parameter, :math:`b_\mathrm{lin}` (``b_lin``).
diff --git a/soliket/cosmopower/cosmopower.py b/soliket/cosmopower/cosmopower.py
index af30750c..a4735d71 100644
--- a/soliket/cosmopower/cosmopower.py
+++ b/soliket/cosmopower/cosmopower.py
@@ -220,7 +220,7 @@ def get_Cl(self, ell_factor: bool = False, units: str = "FIRASmuK2") -> dict:
         return cls
 
     def ell_factor(self, ls: np.ndarray, spectra: str) -> np.ndarray:
-        """
+        r"""
         Calculate the ell factor for a specific spectrum.
         These prefactors are used to convert from Cell to Dell and vice-versa.
 
diff --git a/soliket/mflike/mflike.py b/soliket/mflike/mflike.py
index 1591302f..3993c729 100644
--- a/soliket/mflike/mflike.py
+++ b/soliket/mflike/mflike.py
@@ -115,7 +115,7 @@ def logp(self, **params_values):
         return self.loglike(cmbfg_dict)
 
     def loglike(self, cmbfg_dict):
-        """
+        r"""
         Computes the gaussian log-likelihood
 
         :param cmbfg_dict: the dictionary of theory + foregrounds
@@ -215,7 +215,7 @@ def get_cl_meta(spec):
             return exp_1, exp_2, pols, scls, symm
 
         def get_sacc_names(pol, exp_1, exp_2):
-            """
+            r"""
             Lower-level function of `prepare_data`.
             Translates the polarization combination and channel
             name of a given entry in the `spectra`
@@ -388,7 +388,7 @@ def get_sacc_names(pol, exp_1, exp_2):
         self.data = GaussianData("mflike", self.ell_vec, self.data_vec, self.cov)
 
     def _get_power_spectra(self, cmbfg):
-        """
+        r"""
         Get :math:`D_{\ell}` from the theory component
         already modified by ``theoryforge_MFLike``
 
diff --git a/soliket/tests/test_mflike.py b/soliket/tests/test_mflike.py
index 7baad897..7c416a39 100644
--- a/soliket/tests/test_mflike.py
+++ b/soliket/tests/test_mflike.py
@@ -7,8 +7,6 @@
 import numpy as np
 import pytest
 from cobaya.tools import resolve_packages_path
-from packaging.version import Version
-
 import soliket
 from soliket.mflike import TestMFLike