diff --git a/core/services/modeladmin/modeladmin_suite_test.go b/core/services/modeladmin/modeladmin_suite_test.go
index a4332e395bbc..b0a053167bb9 100644
--- a/core/services/modeladmin/modeladmin_suite_test.go
+++ b/core/services/modeladmin/modeladmin_suite_test.go
@@ -2,6 +2,7 @@ package modeladmin
 
 import (
 	"testing"
+	"time"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
@@ -9,5 +10,12 @@ import (
 
 func TestModelAdmin(t *testing.T) {
 	RegisterFailHandler(Fail)
+	// Several specs in this suite coordinate goroutines through
+	// Eventually/Consistently on unbuffered-ish channels (e.g. the
+	// blockingRevisionLifecycle helper). Gomega's 1s default timeout can be
+	// too tight on slower or loaded CI runners (notably macOS runners),
+	// causing spurious "Timed out after 1.005s" failures even though the
+	// goroutines eventually make progress. Give them more headroom.
+	SetDefaultEventuallyTimeout(5 * time.Second)
 	RunSpecs(t, "modeladmin test suite")
 }