diff --git a/firmware/src/lib/CMSIS/NN/Tests/UnitTest/requirements.txt b/firmware/src/lib/CMSIS/NN/Tests/UnitTest/requirements.txt
old mode 100755
new mode 100644
index 23a99ba..e97e2d9
--- a/firmware/src/lib/CMSIS/NN/Tests/UnitTest/requirements.txt
+++ b/firmware/src/lib/CMSIS/NN/Tests/UnitTest/requirements.txt
@@ -31,7 +31,7 @@ oauthlib==3.1.0
 opt-einsum==3.1.0
 packaging==20.1
 prettytable==0.7.2
-protobuf==3.11.3
+protobuf==3.15.0
 pyasn1==0.4.8
 pyasn1-modules==0.2.8
 pyparsing==2.4.6