diff --git a/changelog/prestoalvarez_patch3.md b/changelog/prestoalvarez_patch3.md
new file mode 100644
index 000000000000..dc5c7bc27d39
--- /dev/null
+++ b/changelog/prestoalvarez_patch3.md
@@ -0,0 +1 @@
+Fix resource leak in prometheus service test by properly closing HTTP response body.
diff --git a/monitoring/prometheus/service_test.go b/monitoring/prometheus/service_test.go
index 3087ab3baa3a..6d6936c1de90 100644
--- a/monitoring/prometheus/service_test.go
+++ b/monitoring/prometheus/service_test.go
@@ -32,6 +32,8 @@ func TestLifecycle(t *testing.T) {
 	// Query the service to ensure it really started.
 	resp, err := http.Get(fmt.Sprintf("http://localhost:%d/metrics", port))
 	require.NoError(t, err)
+	// Close response body to avoid leaking connections.
+	defer resp.Body.Close()
 	assert.NotEqual(t, uint64(0), resp.ContentLength, "Unexpected content length 0")
 
 	err = prometheusService.Stop()