diff --git a/requirement.txt b/requirement.txt
index 9133b62..a35daaf 100644
--- a/requirement.txt
+++ b/requirement.txt
@@ -1,4 +1,4 @@
-numpy==1.16.2
+numpy==1.22.0
 python-crfsuite==0.9.6
 six==1.12.0
 sklearn-crfsuite==0.3.6