diff --git a/use_case_examples/federated_learning/fix_grpc.sh b/use_case_examples/federated_learning/fix_grpc.sh
old mode 100644
new mode 100755
index e351055d8..5c631ee9b
--- a/use_case_examples/federated_learning/fix_grpc.sh
+++ b/use_case_examples/federated_learning/fix_grpc.sh
@@ -1,4 +1,4 @@
-#!/bin/env bash
+#!/usr/bin/env bash
 # on m1 mac there is a known issue with grpc install
 
 # https://stackoverflow.com/questions/72620996/apple-m1-symbol-not-found-cfrelease-while-running-python-app/74306400#74306400
diff --git a/use_case_examples/federated_learning/requirements.txt b/use_case_examples/federated_learning/requirements.txt
index eec2e1a3c..0c7e2344a 100644
--- a/use_case_examples/federated_learning/requirements.txt
+++ b/use_case_examples/federated_learning/requirements.txt
@@ -1,4 +1,4 @@
 flwr~=1.4.0
-numpy~=1.21.1
+numpy~=1.22.4
 openml~=0.13.1
 scikit_learn~=1.2.2