diff --git a/requirements.txt b/requirements.txt
index 6537eed3..189dbaf2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,4 @@ paytmchecksum~=1.7.0
 razorpay~=1.2.0
 stripe~=2.56.0
 braintree~=4.20.0
+pycryptodome~=3.18.0