diff --git a/requirements.txt b/requirements.txt
index aac86e8..f046395 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 george==0.3.1
 matplotlib==2.1.1
-numpy==1.15.4
+numpy==1.22.0
 pybind11==2.2.4
 pytest==3.5.0
 sobol_seq==0.1.2