diff --git a/requirements.txt b/requirements.txt
index 6a97fcf..e3fd657 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,7 +8,7 @@ atomicwrites==1.1.5       # via pytest
 attrs==18.1.0             # via pytest
 funcsigs==1.0.2           # via pytest
 more-itertools==4.3.0     # via pytest
-numpy==1.15.0
+numpy==1.22.0
 pandas==0.23.3
 pathlib2==2.3.2           # via pytest
 pluggy==0.7.1             # via pytest