diff --git a/requirements.txt b/requirements.txt
old mode 100755
new mode 100644
index 994f8da..8f3b6ed
--- a/requirements.txt
+++ b/requirements.txt
@@ -40,7 +40,7 @@ ptyprocess==0.5.2
 pyasn1==0.3.7
 pycparser==2.18
 pycrypto==2.6.1
-pycryptodome==3.4.7
+pycryptodome==3.6.6
 Pygments==2.2.0
 pymongo==3.5.1
 PyNaCl==1.2.0