diff --git a/requirements.txt b/requirements.txt
index ef15366..82ddf2b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 nltk>=3.4.5
-numpy==1.10.4
+numpy==1.21.0
 scipy==0.17.0
 python-crfsuite==0.8.4
 sklearn==0.0