diff --git a/src/rex.notebook/setup.py b/src/rex.notebook/setup.py
index 0af309a31..0b60f2d7e 100644
--- a/src/rex.notebook/setup.py
+++ b/src/rex.notebook/setup.py
@@ -24,6 +24,7 @@
         "nbformat == 4.4.0",
         "nbconvert == 5.6.0",
         "nbstripout == 0.3.6",
+        "numpy==1.22.3",
         "pandas == 1.0.4",
         "matplotlib == 3.1.1",
         "ipykernel == 5.1.2",