diff --git a/utils/src/main/java/one/nem/lacerta/utils/impl/placeholder b/utils/src/main/java/one/nem/lacerta/utils/impl/placeholder
new file mode 100644
index 00000000..e69de29b
diff --git a/utils/src/main/java/one/nem/lacerta/utils/module/placeholder b/utils/src/main/java/one/nem/lacerta/utils/module/placeholder
new file mode 100644
index 00000000..e69de29b
diff --git a/utils/src/main/java/one/nem/lacerta/utils/repository/placeholder b/utils/src/main/java/one/nem/lacerta/utils/repository/placeholder
new file mode 100644
index 00000000..e69de29b