diff --git a/Makefile b/Makefile
index dc64d98..a03f3d6 100644
--- a/Makefile
+++ b/Makefile
@@ -5,9 +5,9 @@ TAG ?= $(shell git describe --tag --always --dirty)
 BRANCH ?= $(shell git rev-parse --abbrev-ref HEAD)
 REGISTRY_AND_USERNAME := $(REGISTRY)/$(USERNAME)
 NAME := kubelet
-KUBELET_VER := v1.20.4
-KUBELET_SHA512_AMD64 := 8b6b8fba8cba2383060a493c47f8ef2fecd5c784aa200dfdd8a57f4ed9113f4ce7eb44b796456d8781fddd3c17c3df6dda72caad1c4f8533e0eb1daa5033cd27
-KUBELET_SHA512_ARM64 := 136ca2d2d747e160d93b7659f30386d1da9b961d270332eacdb2a3271ba119941af3cbc1b4d860dbebc6080588beddb062d765229710bda3d36e649f1d5a039a
+KUBELET_VER := v1.21.0-beta.1
+KUBELET_SHA512_AMD64 := fe9f9fb974722ef81e3de7c87ed55d6b9d8746ba219322d0c2cc4fc2a5a754e709c10cf19888d5e512eb93cd94f0f6bafb6d5beb88fc58ff30b1a7fe1565bee0
+KUBELET_SHA512_ARM64 := d523a81af6fce24251c0cabc0ed95aa4f8cd358c76d3945ba40d3abc62db6bcc3eab49120342eca5cb57d60976a15990c05c078c12e07fd098bc0a1fb34d3247
 
 BUILD := docker buildx build
 PLATFORM ?= linux/amd64,linux/arm64