diff --git a/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/frequency_SNR.py b/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/frequency_SNR.py
index 8dbe54052..dd3ab6578 100644
--- a/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/frequency_SNR.py
+++ b/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/frequency_SNR.py
@@ -136,7 +136,9 @@ def _acquisition(
 
     for _freq in TWPAFrequency_range:
         for qubit in qubits:
-            qubits[qubit].twpa.local_oscillator.frequency = ( initial_twpa_freq[qubit] + _freq )
+            qubits[qubit].twpa.local_oscillator.frequency = (
+                initial_twpa_freq[qubit] + _freq
+            )
 
         resonator_spectroscopy_data = resonator_spectroscopy._acquisition(
             resonator_spectroscopy.ResonatorSpectroscopyParameters.load(
@@ -156,8 +158,8 @@ def _acquisition(
                 qubit,
                 signal=resonator_spectroscopy_data[qubit].signal,
                 phase=resonator_spectroscopy_data[qubit].phase,
-                freq=resonator_spectroscopy_data[qubit].freq,                
-                twpa_freq= _freq + initial_twpa_freq[qubit]
+                freq=resonator_spectroscopy_data[qubit].freq,
+                twpa_freq=_freq + initial_twpa_freq[qubit],
             )
 
     return data
diff --git a/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/power_SNR.py b/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/power_SNR.py
index 7ea4c29ed..d0ec484ac 100644
--- a/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/power_SNR.py
+++ b/src/qibocal/protocols/characterization/readout_optimization/twpa_calibration/power_SNR.py
@@ -136,7 +136,7 @@ def _acquisition(
 
     for _pow in TWPAPower_range:
         for qubit in qubits:
-            qubits[qubit].twpa.local_oscillator.power =  ( initial_twpa_pow[qubit] + _pow )
+            qubits[qubit].twpa.local_oscillator.power = initial_twpa_pow[qubit] + _pow
 
         resonator_spectroscopy_data = resonator_spectroscopy._acquisition(
             resonator_spectroscopy.ResonatorSpectroscopyParameters.load(
@@ -157,7 +157,7 @@ def _acquisition(
                 signal=resonator_spectroscopy_data.data[qubit].signal,
                 phase=resonator_spectroscopy_data.data[qubit].phase,
                 freq=resonator_spectroscopy_data.data[qubit].freq,
-                twpa_pow=_pow + initial_twpa_pow[qubit]
+                twpa_pow=_pow + initial_twpa_pow[qubit],
             )
 
     return data
diff --git a/tests/runcards/protocols.yml b/tests/runcards/protocols.yml
index 1f76edbba..06ab3ce8f 100644
--- a/tests/runcards/protocols.yml
+++ b/tests/runcards/protocols.yml
@@ -666,7 +666,7 @@ actions:
       twpa_pow_step: 1
       power_level: low
       nshots: 1000
-      relaxation_time: 2000 
+      relaxation_time: 2000
 
   - id: twpa_frequency_SNR
     priority: 0