diff --git a/src/applications/SRAnonTool/requirements.txt b/src/applications/SRAnonTool/requirements.txt
index 318ee49..3e3062e 100644
--- a/src/applications/SRAnonTool/requirements.txt
+++ b/src/applications/SRAnonTool/requirements.txt
@@ -24,7 +24,7 @@ numpy==1.26.4
 packaging==24.1
 pika==1.3.2
 preshed==3.0.9
-protobuf==3.19.6
+protobuf==4.25.8
 psycopg2-binary==2.9.9
 pydantic==2.8.2
 pydantic_core==2.20.1