diff --git a/python/rna-transcription/rna_transcription.py b/python/rna-transcription/rna_transcription.py
index 9d7bcf2..ec7b1f3 100644
--- a/python/rna-transcription/rna_transcription.py
+++ b/python/rna-transcription/rna_transcription.py
@@ -1,4 +1,4 @@
-RNA_TRANSLATION = ''.maketrans('GCTA', 'CGAU')
+RNA_TRANSLATION = str.maketrans('GCTA', 'CGAU')
 
 def to_rna(dna_strand):
     return dna_strand.translate(RNA_TRANSLATION)