diff --git a/txt.js/txt.py b/txt.js/txt.py
index f4db38b..6d81561 100755
--- a/txt.js/txt.py
+++ b/txt.js/txt.py
@@ -5,7 +5,7 @@ from __future__ import division
 import os
 
 from PIL import Image
-from optparse import OptionParser
+from argparse import ArgumentParser
 from ox.image import drawText, wrapText
 
 root_dir = os.path.normpath(os.path.abspath(os.path.dirname(__file__)))
@@ -75,18 +75,15 @@ def render(infile, outfile):
 
 
 def main():
-    parser = OptionParser()
-    parser.add_option(
-        '-i', '--infile', dest='infile', help='txt file to be read'
+    parser = ArgumentParser()
+    parser.add_argument(
+        '-i', '--infile', dest='infile', help='txt file to be read', required=True
     )
-    parser.add_option(
-        '-o', '--outfile', dest='outfile', help='jpg file to be written'
+    parser.add_argument(
+        '-o', '--outfile', dest='outfile', help='jpg file to be written', required=True
     )
-    (options, args) = parser.parse_args()
-    if None in (options.infile, options.outfile):
-        parser.print_help()
-    else:
-        render(options.infile, options.outfile)
+    options = parser.parse_args()
+    render(options.infile, options.outfile)
 
 
 if __name__ == '__main__':