diff --git a/requirements.txt b/requirements.txt
index 99847f9..f41a5e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -38,6 +38,7 @@ idna==3.6
 ipykernel==6.29.2
 ipython==8.22.1
 ipywidgets==8.1.2
+PyWavelets==1.5.0
 isoduration==20.11.0
 jedi==0.19.1
 Jinja2==3.1.3