diff --git a/requirements.txt b/requirements.txt
index a7b1842..991577d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 protobuf==3.7.1
-pycryptodome==3.8.1
+pycryptodome==3.19.1
 six==1.12.0