diff --git a/backend/address2UPRN/handler/Dockerfile b/backend/address2UPRN/handler/Dockerfile
index 419b4d66..155c37ad 100644
--- a/backend/address2UPRN/handler/Dockerfile
+++ b/backend/address2UPRN/handler/Dockerfile
@@ -5,10 +5,12 @@ FROM public.ecr.aws/lambda/python:3.10
 ARG DEV_DB_HOST
 ARG DEV_DB_PORT
 ARG DEV_DB_NAME
+ARG EPC_AUTH_TOKEN
 
 ENV DB_HOST=${DEV_DB_HOST}
 ENV DB_PORT=${DEV_DB_PORT}
 ENV DB_NAME=${DEV_DB_NAME}
+ENV EPC_AUTH_TOKEN=${EPC_AUTH_TOKEN}}
 
 
 # Set working directory (Lambda task root)