diff --git a/requirements.txt b/requirements.txt
index c18d679d42d2ff8e406f07cb332cdc9dcba06aae..298a5faa902ef95e012032c43bfce2dbacb90d3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -9,4 +9,6 @@ scikit-image
 sklearn
 tables
 gitpython
-pdfminer.six
\ No newline at end of file
+pdfminer.six
+nltk
+pyxdameraulevenshtein