diff --git a/.travis.yml b/.travis.yml
index fed8cdc..57882a5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@ python:
 before_install:
 - export BOTO_CONFIG=/dev/null
 install:
-- pip install pycryptodome==3.6.1
+- pip install pycryptodome==3.6.6
 - python setup.py install
 - pip freeze
 before_script: