diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6602915..a976616 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,7 +6,7 @@ on:
       - 'main'
 
 env:
-  BUILDER_VERSION: v0.9.64
+  BUILDER_VERSION: v0.9.66
   BUILDER_SOURCE: releases
   BUILDER_HOST: https://d19elf31gohf1l.cloudfront.net
   PACKAGE_NAME: aws-checksums