diff --git a/backend/categorisation/handler/Dockerfile b/backend/categorisation/handler/Dockerfile
index f0828e35..7811ee4a 100644
--- a/backend/categorisation/handler/Dockerfile
+++ b/backend/categorisation/handler/Dockerfile
@@ -38,6 +38,7 @@ COPY datatypes/ datatypes/
 COPY backend/app/db/connection.py backend/app/db/connection.py
 
 COPY backend/app/config.py backend/app/config.py
+COPY backend/app/utils.py backend/app/utils.py
 
 COPY backend/__init__.py backend/__init__.py
 COPY backend/app/__init__.py backend/app/__init__.py