diff --git a/src/ddb.app.src b/src/ddb.app.src
index 8c23d79..2ce6fbd 100644
--- a/src/ddb.app.src
+++ b/src/ddb.app.src
@@ -14,5 +14,8 @@
                   inets,
                   ssl
                  ]},
+  {agner, [
+           {requires, ["lager"]}
+         ]},
   {env, []}
  ]}.