diff --git a/dev/gen-protos b/dev/gen-protos
index b8745e86..0448e00b 100755
--- a/dev/gen-protos
+++ b/dev/gen-protos
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 rm -rf pkg/proto/**/*.pb.go pkg/proto/**/*.pb.gw.go pkg/proto/**/*.swagger.json
-if ! buf generate https://github.com/xmtp/proto.git#subdir=proto,branch=main; then
+if ! buf generate https://github.com/xmtp/proto.git#subdir=proto,ref=08c80536d56e73c6f585d80e7cd2de3db6733c8b; then
     echo "Failed to generate protobuf definitions"
     exit 1
 fi
\ No newline at end of file