diff --git a/backend/postcode_splitter/handler/requirements.txt b/backend/postcode_splitter/handler/requirements.txt
index e69de29b..f6618d2b 100644
--- a/backend/postcode_splitter/handler/requirements.txt
+++ b/backend/postcode_splitter/handler/requirements.txt
@@ -0,0 +1,5 @@
+pandas>=1.3.0
+requests>=2.28.0
+tqdm>=4.64.0
+epc-api>=0.1.0
+openpyxl>=3.8.0