diff --git a/Earthfile b/Earthfile
index 8e204ebeb..8ca646061 100644
--- a/Earthfile
+++ b/Earthfile
@@ -10,7 +10,7 @@ ARG GRYPE_VERSION=v0.82.1
 # renovate: datasource=docker depName=quay.io/kairos/framework versioning=semver
 ARG KAIROS_FRAMEWORK_VERSION=v2.14.1
 # renovate: datasource=docker depName=quay.io/kairos/osbuilder-tools versioning=semver
-ARG OSBUILDER_VERSION=v0.400.2
+ARG OSBUILDER_VERSION=v0.400.3
 # renovate: datasource=docker depName=golang versioning=semver
 ARG GO_VERSION=1.22
 # renovate: datasource=docker depName=hadolint/hadolint