diff --git a/scripts/protocgen.sh b/scripts/protocgen.sh
index 5d5ce2d..40a6c9c 100755
--- a/scripts/protocgen.sh
+++ b/scripts/protocgen.sh
@@ -21,7 +21,7 @@ protoc_gen_doc
 proto_dirs=$(find ./proto -path -prune -o -name '*.proto' -print0 | xargs -0 -n1 dirname | sort | uniq)
 # TODO: migrate to `buf build`
 for dir in $proto_dirs; do
-  buf protoc \
+  buf alpha protoc \
   -I "proto" \
   -I "third_party/proto" \
   --gocosmos_out=plugins=interfacetype+grpc,\
@@ -33,7 +33,7 @@ done
 
 # command to generate docs using protoc-gen-doc
 # TODO: migrate to `buf build`
-buf protoc \
+buf alpha protoc \
 -I "proto" \
 -I "third_party/proto" \
 --doc_out=./docs/protocol \