diff --git a/old/notebooks/sources/requirements.txt b/old/notebooks/sources/requirements.txt
index 7e39960e..1ed22dfa 100644
--- a/old/notebooks/sources/requirements.txt
+++ b/old/notebooks/sources/requirements.txt
@@ -5,7 +5,7 @@ certifi==14.05.14
 ipython==2.4.1
 matplotlib==1.4.3
 nose==1.3.4
-numpy==1.9.1
+numpy==1.22.0
 pandas==0.15.2
 pyparsing==2.0.3
 python-dateutil==2.4.0