diff --git a/Dockerfile b/Dockerfile
index 693f940..ae0971f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Build the manager binary
-FROM golang:1.19 as builder
+FROM mirror.gcr.io/library/golang:1.19 as builder
 ARG TARGETOS
 ARG TARGETARCH
 
diff --git a/Makefile b/Makefile
index 6d44459..afdc871 100644
--- a/Makefile
+++ b/Makefile
@@ -163,4 +163,4 @@ $(CONTROLLER_GEN): $(LOCALBIN)
 .PHONY: envtest
 envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
 $(ENVTEST): $(LOCALBIN)
-	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest
+	test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@release-0.16