diff --git a/plugins/buildx.installer b/plugins/buildx.installer
old mode 100644
new mode 100755
index f02b99c6d0..abf659019e
--- a/plugins/buildx.installer
+++ b/plugins/buildx.installer
@@ -6,7 +6,7 @@ source "$(dirname "$0")/.common"
 PKG=github.com/docker/buildx
 GOPATH=$(go env GOPATH)
 REPO=https://${PKG}.git
-: "${BUILDX_COMMIT=v0.3.1}"
+: "${BUILDX_COMMIT=v0.4.2}"
 DEST=${GOPATH}/src/${PKG}
 
 build() {