diff --git a/dev/protos/update.sh b/dev/protos/update.sh
index 828c22a96..a5258fcd0 100755
--- a/dev/protos/update.sh
+++ b/dev/protos/update.sh
@@ -80,6 +80,7 @@ popd
 PBJS_ARGS=( --proto_path=. \
   --js_out=import_style=commonjs,binary:library \
   --target=static-module \
+  --path="$(npm root)/protobufjs" \
   --no-create \
   --no-encode \
   --no-decode \
@@ -117,12 +118,14 @@ perl -pi -e 's/number\|Long/number\|string/g' firestore_v1beta1_proto_api.js
 
 "${PBJS}" --proto_path=. --target=json -o v1.json \
   -r firestore_v1 \
+  --path="$(npm root)/protobufjs" \
   "${PROTOS_DIR}/google/firestore/v1/*.proto" \
   "${PROTOS_DIR}/google/protobuf/*.proto" "${PROTOS_DIR}/google/type/*.proto" \
   "${PROTOS_DIR}/google/rpc/*.proto" "${PROTOS_DIR}/google/api/*.proto"
 
 "${PBJS}" --proto_path=. --target=json -o v1_admin.json \
   -r firestore_admin_v1 \
+  --path="$(npm root)/protobufjs" \
   "${PROTOS_DIR}/google/firestore/admin/v1/*.proto" \
   "${PROTOS_DIR}/google/protobuf/*.proto" "${PROTOS_DIR}/google/type/*.proto" \
   "${PROTOS_DIR}/google/rpc/*.proto" "${PROTOS_DIR}/google/api/*.proto" \
@@ -130,6 +133,7 @@ perl -pi -e 's/number\|Long/number\|string/g' firestore_v1beta1_proto_api.js
 
 "${PBJS}" --proto_path=. --target=json -o v1beta1.json \
   -r firestore_v1beta1 \
+  --path="$(npm root)/protobufjs" \
   "${PROTOS_DIR}/google/firestore/v1beta1/*.proto" \
   "${PROTOS_DIR}/google/protobuf/*.proto" "${PROTOS_DIR}/google/type/*.proto" \
   "${PROTOS_DIR}/google/rpc/*.proto" "${PROTOS_DIR}/google/api/*.proto"