diff --git a/pyproject.toml b/pyproject.toml
index abc0200..bf7140a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,7 +12,7 @@ license = {file = "LICENSE.md"}
 readme = "README.md"
 dependencies = [
     "pydantic",
-    "telicent-label-builder-service"
+    "telicent-label-builder-service>=0.1.1"
 ]
 classifiers = [
     "Development Status :: 3 - Alpha",