diff --git a/docker-images/checksummer/requirements.txt b/docker-images/checksummer/requirements.txt
index f55ce7a4..fc67b19d 100644
--- a/docker-images/checksummer/requirements.txt
+++ b/docker-images/checksummer/requirements.txt
@@ -1,5 +1,5 @@
 boto3==1.7.69
-urllib3==1.24.2
+urllib3==2.6.3
 dcplib==1.4.0
 pika==0.12.0
 requests==2.20.0