diff --git a/sdk/canton/community/app/src/pack/examples/08-interactive-submission/requirements.txt b/sdk/canton/community/app/src/pack/examples/08-interactive-submission/requirements.txt
index a4a5bbbc4a3f..c7fab83b737c 100644
--- a/sdk/canton/community/app/src/pack/examples/08-interactive-submission/requirements.txt
+++ b/sdk/canton/community/app/src/pack/examples/08-interactive-submission/requirements.txt
@@ -1,3 +1,3 @@
 cryptography==44.0.1
 grpcio-tools==1.70.0
-protobuf==5.29.3
+protobuf==7.34.0rc1