diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0e0ce198..2d8aa8eb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -39,7 +39,7 @@ jobs:
       with:
         virtualenvs-create: true
         virtualenvs-in-project: true
-        installer-parallel: true # default option selected currently
+        installer-parallel: false # default option selected currently
     # Load cached environment, if it exists
     - name: Load cached poetry environment
       id: cached-poetry-dependencies
diff --git a/.github/workflows/pylint.yml b/.github/workflows/pylint.yml
index 8d3e57fb..36678ecc 100644
--- a/.github/workflows/pylint.yml
+++ b/.github/workflows/pylint.yml
@@ -26,7 +26,7 @@ jobs:
       with:
         virtualenvs-create: true
         virtualenvs-in-project: true
-        installer-parallel: true # default option selected currently
+        installer-parallel: false # default option selected currently
     - name: Load cached poetry environment
       id: cached-poetry-dependencies
       uses: actions/cache@v4
diff --git a/gnss_lib_py/parsers/rinex_nav.py b/gnss_lib_py/parsers/rinex_nav.py
index e693581c..588f658d 100644
--- a/gnss_lib_py/parsers/rinex_nav.py
+++ b/gnss_lib_py/parsers/rinex_nav.py
@@ -216,9 +216,9 @@ def _get_ephemeris_dataframe(self, rinex_path, constellations=None):
         # Rename Keplerian orbital parameters to match a GLP standard
         data.rename(columns={'M0': 'M_0', 'Eccentricity': 'e', 'Toe': 't_oe', 'DeltaN': 'deltaN', 'Cuc': 'C_uc', 'Cus': 'C_us',
                              'Cic': 'C_ic', 'Crc': 'C_rc', 'Cis': 'C_is', 'Crs': 'C_rs', 'Io': 'i_0', 'Omega0': 'Omega_0'}, inplace=True)
-        data.rename(columns={'X': 'sv_x_m', 'dX': 'sv_dx_mps', 'dX2': 'sv_dx2_mps2',
-                             'Y': 'sv_y_m', 'dY': 'sv_dy_mps', 'dY2': 'sv_dy2_mps2',
-                             'Z': 'sv_z_m', 'dZ': 'sv_dz_mps', 'dZ2': 'sv_dz2_mps2'}, )
+        data.rename(columns={'X': 'x_sv_m', 'dX': 'dx_sv_mps', 'dX2': 'dx2_sv_mps2',
+                             'Y': 'y_sv_m', 'dY': 'dy_sv_mps', 'dY2': 'dy2_sv_mps2',
+                             'Z': 'z_sv_m', 'dZ': 'dz_sv_mps', 'dZ2': 'dz2_sv_mps2'}, inplace=True)
         return data, data_header
 
     def get_iono_params(self, rinex_header, constellations=None):