diff --git a/source/lambda/elasticsearch/requirements.txt b/source/lambda/elasticsearch/requirements.txt
index 6dedfcc43..35273d531 100644
--- a/source/lambda/elasticsearch/requirements.txt
+++ b/source/lambda/elasticsearch/requirements.txt
@@ -4,5 +4,5 @@ requests==2.31.0
 idna==3.3
 chardet==5.2.0
 certifi==2023.7.22
-urllib3==1.26.11
+urllib3==1.26.18