diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index e90c92e..0abbe87
--- a/requirements.txt
+++ b/requirements.txt
@@ -44,7 +44,7 @@ Pillow==6.2.1
 protobuf==3.10.0
 pyasn1==0.4.7
 pyasn1-modules==0.2.7
-pycryptodome==3.4.3
+pycryptodome==3.6.6
 PyJWT==1.7.1
 Pyrebase==3.0.27
 python-jwt==2.0.1