diff --git a/aries_cloudagent/transport/outbound/queue/base.py b/aries_cloudagent/transport/outbound/queue/base.py
index 23fa18674d..9cd1c53927 100644
--- a/aries_cloudagent/transport/outbound/queue/base.py
+++ b/aries_cloudagent/transport/outbound/queue/base.py
@@ -37,10 +37,6 @@ async def start(self):
     async def stop(self):
         """Stop the queue."""
 
-    @abstractmethod
-    async def push(self, key: bytes, message: bytes):
-        """Push a ``message`` to queue on ``key``."""
-
     @abstractmethod
     async def enqueue_message(
         self,