diff --git a/api_endpoints/v1_postcode_lookup/requirements.txt b/api_endpoints/v1_postcode_lookup/requirements.txt
index 5ef0109..c516b66 100644
--- a/api_endpoints/v1_postcode_lookup/requirements.txt
+++ b/api_endpoints/v1_postcode_lookup/requirements.txt
@@ -3,4 +3,4 @@ starlette==0.26.1
 mangum==0.17.0
 requests==2.31.0
 https://github.com/DemocracyClub/dc_logging/archive/refs/tags/1.0.2.tar.gz
-urllib3==1.26.18
+urllib3==1.26.19