diff --git a/PyStationB/projects/CellSignalling/requirements.txt b/PyStationB/projects/CellSignalling/requirements.txt
index 546027d..d22d6e6 100644
--- a/PyStationB/projects/CellSignalling/requirements.txt
+++ b/PyStationB/projects/CellSignalling/requirements.txt
@@ -1,5 +1,5 @@
 matplotlib==3.4.2
-numpy==1.21.1
+numpy==1.22.0
 openpyxl==3.0.7
 pandas==1.3.1
 pydantic==1.8.2