diff --git a/requirements.txt b/requirements.txt
index 4a9e410..98d1c66 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,5 +2,5 @@ hdbscan==0.8.10
 scipy==0.19.0
 pytest==3.0.7
 setuptools==35.0.2
-numpy==1.12.0
+numpy==1.21.0
 scikit_learn==0.18.2