diff --git a/README.md b/README.md
index e411e29..c185560 100644
--- a/README.md
+++ b/README.md
@@ -280,7 +280,7 @@ dbsecmpc.opvector(rtx, dbsecmpc.OP_XOR)
 ```
     @misc{NKDBsec,
       author = {Junjian Shi, Zekun Fei, Zheli Liu, Xiaotao Liu, Yun Pan, Hao Yang, Jihong Guo},
-      title = {{NKDBsec：A MPC Framework for Collaborative Database Analysis}},
+      title = {{NKDBsec：An MPC Framework for Collaborative Database Analysis}},
       howpublished = {\url{https://osredm.com/nankaicyber/NKDBsec}},
       year={2024}
     }