diff --git a/.circleci/config.yml b/.circleci/config.yml
index bacd853..c24ac6f 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -5,7 +5,7 @@ executors:
       - image: docker:git
     environment:
       GLIBC_VERSION: 2.39
-    resource_class: large
+    resource_class: arm.large
     working_directory: ~/docker-glibc-builder
   artefact-uploader:
     docker: