diff --git a/backend/postcode_splitter/handler/Dockerfile b/backend/postcode_splitter/handler/Dockerfile
index 4c002f1d..3f77f38f 100644
--- a/backend/postcode_splitter/handler/Dockerfile
+++ b/backend/postcode_splitter/handler/Dockerfile
@@ -3,7 +3,7 @@ FROM public.ecr.aws/lambda/python:3.10
 # Set working directory (Lambda task root)
 WORKDIR /var/task
 
-COPY backend/postcode_splitter/handler/requirements.txt
+COPY backend/postcode_splitter/handler/requirements.txt .
 
 RUN pip install --no-cache-dir -r requirements.txt