diff --git a/pkg/activator/handler/main_test.go b/pkg/activator/handler/main_test.go
index 85823ecb76a6..4ea142dc0207 100644
--- a/pkg/activator/handler/main_test.go
+++ b/pkg/activator/handler/main_test.go
@@ -203,6 +203,8 @@ func TestActivatorChainHandlerWithFullDuplex(t *testing.T) {
 	defer proxyServer.Close()
 
 	transport := http.DefaultTransport.(*http.Transport).Clone()
+	transport.MaxIdleConnsPerHost = 10
+	transport.MaxIdleConns = 100
 
 	// Turning on this will hide the issue
 	transport.DisableKeepAlives = false
@@ -222,7 +224,7 @@ func TestActivatorChainHandlerWithFullDuplex(t *testing.T) {
 			go func(i int) {
 				defer wg.Done()
 
-				for i := 0; i < 1000; i++ {
+				for i := 0; i < 100; i++ {
 					if err := send(c, proxyServer.URL, body, "test-host"); err != nil {
 						t.Errorf("error during request: %v", err)
 					}