diff --git a/DataSourceModules/Electrical-Grid-Data/requirements.txt b/DataSourceModules/Electrical-Grid-Data/requirements.txt
index 8fc8bc2..0eb4d50 100644
--- a/DataSourceModules/Electrical-Grid-Data/requirements.txt
+++ b/DataSourceModules/Electrical-Grid-Data/requirements.txt
@@ -1,5 +1,5 @@
 cassandra-driver==3.7.1
-numpy==1.11.1
+numpy==1.21.0
 pandas==0.18.1
 #PeakUtils==1.0.3
 protobuf==3.1.0.post1