diff --git a/requirements.txt b/requirements.txt
index 6e3375a..7f7e6c8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 notebook==6.4.12
-numpy==1.21.0
+numpy==1.22.0
 scipy==1.5.4
 matplotlib==3.1.3
 pywavelets==1.1.1