diff --git a/backend/python/middleLayer/contractApi/requirements.txt b/backend/python/middleLayer/contractApi/requirements.txt
index fcd8c01..b71abbb 100644
--- a/backend/python/middleLayer/contractApi/requirements.txt
+++ b/backend/python/middleLayer/contractApi/requirements.txt
@@ -1,4 +1,4 @@
-numpy==1.16.4
+numpy==1.22.0
 oef==0.3.2
 typing==3.7.4
 Flask==0.12.2