diff --git a/requirements.txt b/requirements.txt
index 40d02ef1..71021ad5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 git+https://github.com/CCI-MOC/nerc-rates@v1.0.0#egg=nerc_rates
-boto3
+boto3>=1.42.6,<2.0
 kubernetes
 openshift
 coldfront >= 1.1.0