diff --git a/cmd/helm/testdata/output/upgrade-json.txt b/cmd/helm/testdata/output/upgrade-json.txt
new file mode 100644
index 000000000..b60ae5fa3
--- /dev/null
+++ b/cmd/helm/testdata/output/upgrade-json.txt
@@ -0,0 +1 @@
+{"name":"funny-bunny","info":{"first_deployed":"1977-09-02T22:04:05Z","last_deployed":"1977-09-02T22:04:05Z","deleted":"","description":"Upgrade complete","status":"deployed"},"chart":{"metadata":{"name":"test-upgrade-chart","version":"0.1.3","description":"A Helm chart for Kubernetes","apiVersion":"v1"},"lock":null,"templates":null,"values":null,"schema":null,"files":null},"config":{"name":"value"},"version":7,"namespace":"default"}
diff --git a/cmd/helm/testdata/output/upgrade-oci-json.txt b/cmd/helm/testdata/output/upgrade-oci-json.txt
new file mode 100644
index 000000000..3abec031a
--- /dev/null
+++ b/cmd/helm/testdata/output/upgrade-oci-json.txt
@@ -0,0 +1 @@
+{"name":"funny-bunny","info":{"first_deployed":"1977-09-02T22:04:05Z","last_deployed":"1977-09-02T22:04:05Z","deleted":"","description":"Upgrade complete","status":"deployed"},"chart":{"metadata":{"name":"test-upgrade-chart","version":"0.1.7","description":"A Helm chart for Kubernetes","apiVersion":"v1"},"lock":null,"templates":[{"name":"templates/configmap.yaml","data":"YXBpVmVyc2lvbjogdjEKa2luZDogQ29uZmlnTWFwCm1ldGFkYXRhOgogIG5hbWU6ICJ7eyAuUmVsZWFzZS5OYW1lIH19LWNvbmZpZ21hcCIKZGF0YToKICBteXZhbHVlOiAiSGVsbG8gV29ybGQiCiAgZHJpbms6IHt7IC5WYWx1ZXMuZmF2b3JpdGVEcmluayB9fQ=="}],"values":{"favoriteDrink":"beer"},"schema":null,"files":null},"config":{"name":"value"},"manifest":"---\n# Source: test-upgrade-chart/templates/configmap.yaml\napiVersion: v1\nkind: ConfigMap\nmetadata:\n  name: \"funny-bunny-configmap\"\ndata:\n  myvalue: \"Hello World\"\n  drink: beer\n","version":8,"namespace":"default"}
diff --git a/cmd/helm/testdata/testcharts/test-upgrade-chart-0.1.7.tgz b/cmd/helm/testdata/testcharts/test-upgrade-chart-0.1.7.tgz
new file mode 100644
index 000000000..e27e1b3ae
Binary files /dev/null and b/cmd/helm/testdata/testcharts/test-upgrade-chart-0.1.7.tgz differ
diff --git a/cmd/helm/upgrade_test.go b/cmd/helm/upgrade_test.go
index 497c78d71..b0e2c59d6 100644
--- a/cmd/helm/upgrade_test.go
+++ b/cmd/helm/upgrade_test.go
@@ -28,6 +28,7 @@ import (
 	"helm.sh/helm/v3/pkg/chart/loader"
 	"helm.sh/helm/v3/pkg/chartutil"
 	"helm.sh/helm/v3/pkg/release"
+	"helm.sh/helm/v3/pkg/repo/repotest"
 )
 
 func TestUpgradeCmd(t *testing.T) {
@@ -36,7 +37,7 @@ func TestUpgradeCmd(t *testing.T) {
 	cfile := &chart.Chart{
 		Metadata: &chart.Metadata{
 			APIVersion:  chart.APIVersionV1,
-			Name:        "testUpgradeChart",
+			Name:        "test-upgrade-chart",
 			Description: "A Helm chart for Kubernetes",
 			Version:     "0.1.0",
 		},
@@ -89,6 +90,23 @@ func TestUpgradeCmd(t *testing.T) {
 		return release.Mock(&release.MockReleaseOptions{Name: n, Version: v, Chart: ch})
 	}
 
+	srv, err := repotest.NewTempServerWithCleanup(t, "testdata/testcharts/*.tgz")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer srv.Stop()
+	outdir := srv.Root()
+
+	ociSrv, err := repotest.NewOCIServer(t, srv.Root())
+	if err != nil {
+		t.Fatal(err)
+	}
+	ociSrv.Run(t)
+
+	if err := srv.LinkIndices(); err != nil {
+		t.Fatal(err)
+	}
+
 	tests := []cmdTestCase{
 		{
 			name:   "upgrade a release",
@@ -114,6 +132,18 @@ func TestUpgradeCmd(t *testing.T) {
 			golden: "output/upgrade-with-reset-values2.txt",
 			rels:   []*release.Release{relMock("funny-bunny", 5, ch2)},
 		},
+		{
+			name:   "upgrade a release with json output",
+			cmd:    fmt.Sprintf("upgrade --output json funny-bunny '%s'", chartPath),
+			golden: "output/upgrade-json.txt",
+			rels:   []*release.Release{relMock("funny-bunny", 6, ch)},
+		},
+		{
+			name:   "upgrade a oci release with json output",
+			cmd:    fmt.Sprintf("upgrade --output json funny-bunny 'oci://%s/u/ocitestuser/test-upgrade-chart' --version 0.1.7 --registry-config %s", ociSrv.RegistryURL, filepath.Join(outdir, "config.json")),
+			golden: "output/upgrade-oci-json.txt",
+			rels:   []*release.Release{relMock("funny-bunny", 7, ch)},
+		},
 		{
 			name:   "install a release with 'upgrade --install'",
 			cmd:    fmt.Sprintf("upgrade zany-bunny -i '%s'", chartPath),
diff --git a/pkg/repo/repotest/server.go b/pkg/repo/repotest/server.go
index 4a86707cf..0171b9661 100644
--- a/pkg/repo/repotest/server.go
+++ b/pkg/repo/repotest/server.go
@@ -209,6 +209,22 @@ func (srv *OCIServer) Run(t *testing.T, opts ...OCIServerOpt) {
 		result.Config.Digest, result.Config.Size,
 		result.Chart.Digest, result.Chart.Size)
 
+	upgradeRef := fmt.Sprintf("%s/u/ocitestuser/test-upgrade-chart:0.1.7", srv.RegistryURL)
+	contentBytes, err = os.ReadFile(filepath.Join(srv.Dir, "test-upgrade-chart-0.1.7.tgz"))
+	if err != nil {
+		t.Fatal("could not load chart into memory")
+	}
+	result, err = registryClient.Push(contentBytes, upgradeRef)
+	if err != nil {
+		t.Fatalf("error pushing chart: %s", err)
+	}
+	t.Logf("Manifest.Digest: %s, Manifest.Size: %d, "+
+		"Config.Digest: %s, Config.Size: %d, "+
+		"Chart.Digest: %s, Chart.Size: %d",
+		result.Manifest.Digest, result.Manifest.Size,
+		result.Config.Digest, result.Config.Size,
+		result.Chart.Digest, result.Chart.Size)
+
 	srv.Client = registryClient
 	c := cfg.DependingChart
 	if c == nil {