diff --git a/docs/static/images/HyperTS.png b/docs/static/images/HyperTS.png
deleted file mode 100644
index 90fcbe7..0000000
Binary files a/docs/static/images/HyperTS.png and /dev/null differ
diff --git a/requirements.txt b/requirements.txt
index 8769a8a..105d21b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,7 +3,7 @@ hypernets>=0.3.0
 sktime>=0.8.1
 prophet>=1.0.1
 statsmodels>=0.12.1
-numpy>=1.16.5,<1.22
+numpy>=1.16.5,<1.23
 pandas>=0.25.3
 scikit-learn>=0.22.1
 scipy