diff --git a/opentelemetry-semantic-conventions/pyproject.toml b/opentelemetry-semantic-conventions/pyproject.toml
index a370e90533..17954a3485 100644
--- a/opentelemetry-semantic-conventions/pyproject.toml
+++ b/opentelemetry-semantic-conventions/pyproject.toml
@@ -28,6 +28,7 @@ classifiers = [
 
 dependencies = [
   "opentelemetry-api == 1.26.0.dev",
+  "Deprecated >= 1.2.6",
 ]
 
 [project.urls]