diff --git a/NLP/UNIMO-2/requirements.txt b/NLP/UNIMO-2/requirements.txt
index fa102640..6144d25e 100644
--- a/NLP/UNIMO-2/requirements.txt
+++ b/NLP/UNIMO-2/requirements.txt
@@ -33,7 +33,7 @@ paddlepaddle-gpu==2.1.2
 pathspec==0.9.0
 Pillow==8.2.0
 platformdirs==2.5.1
-protobuf==3.15.8
+protobuf==3.18.3
 pylint==2.13.2
 pyparsing==2.4.7
 pyrouge==0.1.3