diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 4bb23a4..8b78e67 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -34,7 +34,6 @@ jobs:
         python -m pip install --upgrade pip wheel
         python -m pip install numpy pytest pytest-cov
         python -m pip install -e .
-        python -m pip install pixell==0.17.3
 
     - name: Install extra dependencies (camb)
       run: |
@@ -58,7 +57,7 @@ jobs:
       if: matrix.os == 'ubuntu-latest'
       run: |
         python -m pip install jupyter
-        # jupyter nbconvert --to notebook --execute notebooks/tutorial_io.ipynb
+        jupyter nbconvert --to notebook --execute notebooks/tutorial_io.ipynb
 
     - name: Comparing pspy to NaMaster
       if: matrix.os == 'ubuntu-latest'
diff --git a/pspy/sph_tools.py b/pspy/sph_tools.py
index 09fc757..20ef63f 100644
--- a/pspy/sph_tools.py
+++ b/pspy/sph_tools.py
@@ -3,12 +3,12 @@
 """
 import healpy as hp
 import numpy as np
-
 from pixell import curvedsky, enmap
+
 from pspy import so_window
 
 
-def map2alm(map, niter, lmax, theta_range=None, dtype=np.complex128, tweak=True):
+def map2alm(map, niter, lmax, theta_range=None, dtype=np.complex128):
     """Map2alm transform (for healpix or CAR).
 
     Parameters
@@ -43,18 +43,18 @@ def map2alm(map, niter, lmax, theta_range=None, dtype=np.complex128, tweak=True)
                                                      theta_max=theta_range[1])
 
     elif map.pixel=="CAR":
-        alm = curvedsky.map2alm(map.data, lmax=lmax, tweak=tweak)
+        alm = curvedsky.map2alm(map.data, lmax=lmax)
         if niter != 0:
             map_copy = map.copy()
             for _ in range(niter):
-                alm += curvedsky.map2alm(map.data-curvedsky.alm2map(alm, map_copy.data), lmax=lmax, tweak=tweak)
+                alm += curvedsky.map2alm(map.data-curvedsky.alm2map(alm, map_copy.data), lmax=lmax)
     else:
         raise ValueError("Map is neither a CAR nor a HEALPIX")
 
     alm = alm.astype(dtype)
     return alm
 
-def alm2map(alms, template, tweak=True):
+def alm2map(alms, template):
     """alm2map transform (for healpix and CAR).
 
     Parameters
@@ -72,7 +72,7 @@ def alm2map(alms, template, tweak=True):
     if map_from_alm.pixel == "HEALPIX":
         map_from_alm.data = curvedsky.alm2map_healpix(alms, map_from_alm.data, spin=spin)
     elif map_from_alm.pixel == "CAR":
-        map_from_alm.data = curvedsky.alm2map(alms, map_from_alm.data, spin=spin, tweak=tweak)
+        map_from_alm.data = curvedsky.alm2map(alms, map_from_alm.data, spin=spin)
     else:
         raise ValueError("Map is neither a CAR nor a HEALPIX")
     return map_from_alm
diff --git a/pspy/tests/test_so_spectra.py b/pspy/tests/test_so_spectra.py
index 0e498b4..ce9622f 100644
--- a/pspy/tests/test_so_spectra.py
+++ b/pspy/tests/test_so_spectra.py
@@ -12,7 +12,7 @@
 
 
 class SOSpectraTests(unittest.TestCase):
-    def setUp(self, verbose=False):
+    def setUp(self, verbose=True):
         with open(os.path.join(data_dir, "test_data.pkl"), "rb") as f:
             self.reference = pickle.load(f)
 
@@ -34,7 +34,7 @@ def compare(self, ref, current, msg=""):
         else:
             self.assertTrue(True, f"Data type {type(ref)} are not compared!")
 
-    def test_spectra(self, verbose=False):
+    def test_spectra(self, verbose=True):
         kinds = ["car", "healpix"]
         # do not test window function due to mismatch in distance computation
         # datas = ["cmb", "window", "mbb_inv", "bbl", "spectra"]
diff --git a/setup.py b/setup.py
index 9bbc346..0245aab 100644
--- a/setup.py
+++ b/setup.py
@@ -62,11 +62,11 @@
     entry_points={},
     ext_modules=[mcm, cov],
     install_requires=[
-        "numpy>=1.20",
+        "numpy>=1.20,!=1.26.0",
         "healpy",
         "pyFFTW",
         "pillow",  # this one should be installed by pixell
-        "pixell>=0.7.0",
+        "pixell>=0.20.3",
     ],
     packages=find_packages(),
     include_package_data=True,