diff --git a/requirements.txt b/requirements.txt
index da7938b..ec409d2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 docopt==0.6.2
 spacy>=3
-python-levenshtein==0.12.2
+python-levenshtein==0.21.1
 lingpy==2.6.9
 clldutils==3.10.1
 networkx>=2.5