diff --git a/Pose2Sim/Utilities/Blazepose_runsave.py b/Pose2Sim/Utilities/Blazepose_runsave.py
index 45dc31e..ee355f9 100644
--- a/Pose2Sim/Utilities/Blazepose_runsave.py
+++ b/Pose2Sim/Utilities/Blazepose_runsave.py
@@ -77,7 +77,7 @@ def save_to_csv_or_h5(kpt_list, output_folder, video_name, to_csv, to_h5):
 
     if to_csv:
         csv_file = os.path.join(output_folder, video_name+'.csv')
-        df.to_csv(csv_file, sep=',', index=True, lineterminator='\n')
+        df.to_csv(csv_file, sep=',', index=True, line_terminator='\n')
 
     if to_h5:
         h5_file = os.path.join(output_folder, video_name+'.h5')
diff --git a/Pose2Sim/Utilities/trc_Zup_to_Yup.py b/Pose2Sim/Utilities/trc_Zup_to_Yup.py
index f5b46dc..bbe1b25 100644
--- a/Pose2Sim/Utilities/trc_Zup_to_Yup.py
+++ b/Pose2Sim/Utilities/trc_Zup_to_Yup.py
@@ -73,7 +73,7 @@ def trc_Zup_to_Yup_func(*args):
         [trc_o.write(line) for line in header]
         Q_Yup.insert(0, 'Frame#', frames_col)
         Q_Yup.insert(1, 'Time', time_col)
-        Q_Yup.to_csv(trc_o, sep='\t', index=False, header=None, lineterminator='\n')
+        Q_Yup.to_csv(trc_o, sep='\t', index=False, header=None, line_terminator='\n')
     
 if __name__ == '__main__':
     parser = argparse.ArgumentParser()
@@ -81,4 +81,4 @@ if __name__ == '__main__':
     parser.add_argument('-o', '--output', required=False, help='trc Yup output file')
     args = vars(parser.parse_args())
     
-    trc_Zup_to_Yup_func(args)
+    trc_Zup_to_Yup_func(args)
\ No newline at end of file
diff --git a/Pose2Sim/Utilities/trc_combine.py b/Pose2Sim/Utilities/trc_combine.py
index 0826458..fe6282a 100644
--- a/Pose2Sim/Utilities/trc_combine.py
+++ b/Pose2Sim/Utilities/trc_combine.py
@@ -121,7 +121,7 @@ def trc_from_header_data(Header, Data, combined_path):
 
     with open(combined_path, 'w') as trc_o:
         trc_o.write(header_trc+'\n')
-        Data.to_csv(trc_o, sep='\t', index=False, header=None, lineterminator='\n')
+        Data.to_csv(trc_o, sep='\t', index=False, header=None, line_terminator='\n')
         
 
 def trc_combine_func(*args):
diff --git a/Pose2Sim/Utilities/trc_desample.py b/Pose2Sim/Utilities/trc_desample.py
index 6b7e923..9c2f4af 100644
--- a/Pose2Sim/Utilities/trc_desample.py
+++ b/Pose2Sim/Utilities/trc_desample.py
@@ -74,7 +74,7 @@ def trc_desample_func(*args):
     # write trc
     with open(trc_desampled_path, 'w') as trc_o:
         [trc_o.write(line) for line in header]
-        Q.to_csv(trc_o, sep='\t', index=False, header=None, lineterminator='\n')
+        Q.to_csv(trc_o, sep='\t', index=False, header=None, line_terminator='\n')
     
 
 if __name__ == '__main__':
@@ -84,4 +84,4 @@ if __name__ == '__main__':
     parser.add_argument('-o', '--output_file', required=False, help='trc desampled output file')
     args = vars(parser.parse_args())
     
-    trc_desample_func(args)
+    trc_desample_func(args)
\ No newline at end of file
diff --git a/Pose2Sim/Utilities/trc_filter.py b/Pose2Sim/Utilities/trc_filter.py
index 23b1db8..b1c16cd 100644
--- a/Pose2Sim/Utilities/trc_filter.py
+++ b/Pose2Sim/Utilities/trc_filter.py
@@ -340,7 +340,7 @@ def trc_filter_func(**args):
         [trc_o.write(line) for line in header]
         Q_filt.insert(0, 'Frame#', frames_col)
         Q_filt.insert(1, 'Time', time_col)
-        Q_filt.to_csv(trc_o, sep='\t', index=False, header=None, lineterminator='\n')
+        Q_filt.to_csv(trc_o, sep='\t', index=False, header=None, line_terminator='\n')
 
 
 if __name__ == '__main__':
diff --git a/Pose2Sim/filter_3d.py b/Pose2Sim/filter_3d.py
index be0a6d5..185c62c 100644
--- a/Pose2Sim/filter_3d.py
+++ b/Pose2Sim/filter_3d.py
@@ -326,7 +326,7 @@ def filter_all(config):
         [trc_o.write(line) for line in header]
         Q_filt.insert(0, 'Frame#', frames_col)
         Q_filt.insert(1, 'Time', time_col)
-        Q_filt.to_csv(trc_o, sep='\t', index=False, header=None, lineterminator='\n')
+        Q_filt.to_csv(trc_o, sep='\t', index=False, header=None, line_terminator='\n')
 
     # Recap
     recap_filter3d(config, trc_path_out)
diff --git a/Pose2Sim/triangulate_3d.py b/Pose2Sim/triangulate_3d.py
index 3e09e11..36d10e1 100644
--- a/Pose2Sim/triangulate_3d.py
+++ b/Pose2Sim/triangulate_3d.py
@@ -154,7 +154,7 @@ def make_trc(config, Q, keypoints_names, f_range):
     trc_path = os.path.join(pose3d_dir, trc_f)
     with open(trc_path, 'w') as trc_o:
         [trc_o.write(line+'\n') for line in header_trc]
-        Q.to_csv(trc_o, sep='\t', index=True, header=None, lineterminator='\n')
+        Q.to_csv(trc_o, sep='\t', index=True, header=None, line_terminator='\n')
 
     return trc_path