diff --git a/requirements.txt b/requirements.txt
index 2765c8a..63b2158 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ pydantic==2.13.4
 python-dotenv==1.0.0
 pycardano==0.11.0
 cbor2>=5.6.5
-PyNaCl==1.5.0
+PyNaCl==1.6.2