diff --git a/auth/privkey_test.go b/auth/privkey_test.go
index 29264d0c714bcae795e7eef7787b1f0ad5e8328f..c5c3b6768f2cb0225e03079a083b4f21ddf00f34 100644
--- a/auth/privkey_test.go
+++ b/auth/privkey_test.go
@@ -8,14 +8,14 @@ import (
 )
 
 func TestGeneratePrivateKey(t *testing.T) {
-	_, err := GeneratePrivateKey(1024)
+	_, err := GeneratePrivateKey(512)
 
 	if err != nil {
 		t.Fatal(err)
 	}
 
 	if !testing.Short() {
-		_, err = GeneratePrivateKey(4096)
+		_, err = GeneratePrivateKey(2048)
 		if err != nil {
 			t.Fatal(err)
 		}