diff --git a/gitlab-ci-config/variables.yml b/gitlab-ci-config/variables.yml
index 0ed587efa0a7bd1e57c3085725be77227c9eceda_Z2l0bGFiLWNpLWNvbmZpZy92YXJpYWJsZXMueW1s..a4c590339bf81ab8876b9ae5e30a796dffe5b82d_Z2l0bGFiLWNpLWNvbmZpZy92YXJpYWJsZXMueW1s 100644
--- a/gitlab-ci-config/variables.yml
+++ b/gitlab-ci-config/variables.yml
@@ -8,7 +8,7 @@
   # To be used for images that exist only on dev.gitlab.org
   DEV_BUILDER_IMAGE_REGISTRY: 'dev.gitlab.org:5005/cookbooks/gitlab-omnibus-builder'
   PUBLIC_BUILDER_IMAGE_REGISTRY: "registry.gitlab.com/gitlab-org/gitlab-omnibus-builder"
-  BUILDER_IMAGE_REVISION: "5.19.0"
+  BUILDER_IMAGE_REVISION: "5.21.0"
   # The registry to pull the assets image from
   ASSET_REGISTRY: "${CI_REGISTRY}"
   ASSET_SYNC_EXISTING_REMOTE_FILES: "keep"