diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 4f080131..b63794b1 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -63,27 +63,42 @@ To get started with developing controllers, you might want to review
 walks you through writing a short and concise controller that watches out
 for source changes.
 
-### How to run the test suite
+## How to run the test suite
 
 Prerequisites:
 
 * go >= 1.16
-* kubectl >= 1.18
-* kustomize >= 3.1
+* kubectl >= 1.19
+* kustomize >= 4.0
 
-You can run the unit tests by simply doing
+Install the [controller-runtime/envtest](https://github.com/kubernetes-sigs/controller-runtime/tree/master/tools/setup-envtest) binaries with:
+
+```bash
+make install-envtest
+```
+
+Then you can run the unit tests with:
 
 ```bash
 make test
 ```
 
-The e2e test suite uses [kind](https://kind.sigs.k8s.io/) for running kubernetes cluster inside docker containers. You can run the e2e tests by simply doing
+After [installing Kubernetes kind](https://kind.sigs.k8s.io/docs/user/quick-start#installation) on your machine,
+create a cluster for testing with:
 
 ```bash
 make setup-kind
+```
+
+Then you can run the end-to-end tests with:
+
+```bash
 make e2e
+```
 
-# When done
+Teardown the e2e environment with:
+
+```bash
 make cleanup-kind
 ```
 
diff --git a/Makefile b/Makefile
index edb8f316..f6d168d0 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@ VERSION?=$(shell grep 'VERSION' cmd/flux/main.go | awk '{ print $$4 }' | head -n
 EMBEDDED_MANIFESTS_TARGET=cmd/flux/.manifests.done
 TEST_KUBECONFIG?=/tmp/flux-e2e-test-kubeconfig
 ENVTEST_BIN_VERSION?=latest
-KUBEBUILDER_ASSETS?="$(shell $(SETUP_ENVTEST) use -i $(ENVTEST_BIN_VERSION) -p path)"
+KUBEBUILDER_ASSETS?=$(shell $(SETUP_ENVTEST) use -i $(ENVTEST_BIN_VERSION) -p path)
 
 # Get the currently used golang install path (in GOPATH/bin, unless GOBIN is set)
 ifeq (,$(shell go env GOBIN))
@@ -33,13 +33,13 @@ cleanup-kind:
 	kind delete cluster --name=flux-e2e-test
 	rm $(TEST_KUBECONFIG)
 
-test: $(EMBEDDED_MANIFESTS_TARGET) tidy fmt vet setup-envtest
+test: $(EMBEDDED_MANIFESTS_TARGET) tidy fmt vet install-envtest
 	KUBEBUILDER_ASSETS="$(KUBEBUILDER_ASSETS)" go test ./... -coverprofile cover.out --tags=unit
 
 e2e: $(EMBEDDED_MANIFESTS_TARGET) tidy fmt vet
 	TEST_KUBECONFIG=$(TEST_KUBECONFIG) go test ./cmd/flux/... -coverprofile e2e.cover.out --tags=e2e -v -failfast
 
-test-with-kind: setup-envtest
+test-with-kind: install-envtest
 	make setup-kind
 	make e2e
 	make cleanup-kind
@@ -58,6 +58,10 @@ install:
 install-dev:
 	CGO_ENABLED=0 go build -o /usr/local/bin ./cmd/flux
 
+
+install-envtest:  setup-envtest
+	 $(SETUP_ENVTEST) use $(ENVTEST_BIN_VERSION)
+
 # Find or download setup-envtest
 setup-envtest:
 ifeq (, $(shell which setup-envtest))