diff --git a/backend/address2UPRN/handler/Dockerfile b/backend/address2UPRN/handler/Dockerfile
index 07159357..5f274456 100644
--- a/backend/address2UPRN/handler/Dockerfile
+++ b/backend/address2UPRN/handler/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.10
+FROM --platform=linux/amd64 public.ecr.aws/lambda/python:3.10
 # FROM python:3.11.10-bullseye
 
 
diff --git a/backend/condition/handler/Dockerfile b/backend/condition/handler/Dockerfile
index 71556895..be0d5ca5 100644
--- a/backend/condition/handler/Dockerfile
+++ b/backend/condition/handler/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11
+FROM --platform=linux/amd64 public.ecr.aws/lambda/python:3.11
 # For local running:
 # FROM python:3.11.10-bullseye
 
diff --git a/backend/postcode_splitter/handler/Dockerfile b/backend/postcode_splitter/handler/Dockerfile
index 74c00b9f..8e30f9e3 100644
--- a/backend/postcode_splitter/handler/Dockerfile
+++ b/backend/postcode_splitter/handler/Dockerfile
@@ -1,4 +1,4 @@
-FROM public.ecr.aws/lambda/python:3.11
+FROM --platform=linux/amd64 public.ecr.aws/lambda/python:3.11
 
 ARG DEV_DB_HOST
 ARG DEV_DB_PORT