diff --git a/pkg/serviceaccount/BUILD b/pkg/serviceaccount/BUILD
index eaa64787b1..63ddcf9282 100644
--- a/pkg/serviceaccount/BUILD
+++ b/pkg/serviceaccount/BUILD
@@ -36,7 +36,6 @@ go_test(
         "//pkg/controller/serviceaccount:go_default_library",
         "//vendor/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
-        "//vendor/k8s.io/apiserver/pkg/authentication/serviceaccount:go_default_library",
         "//vendor/k8s.io/client-go/kubernetes:go_default_library",
         "//vendor/k8s.io/client-go/kubernetes/fake:go_default_library",
         "//vendor/k8s.io/client-go/util/cert:go_default_library",
diff --git a/pkg/serviceaccount/jwt_test.go b/pkg/serviceaccount/jwt_test.go
index a8cffd9f39..0f0c52f0f1 100644
--- a/pkg/serviceaccount/jwt_test.go
+++ b/pkg/serviceaccount/jwt_test.go
@@ -22,7 +22,6 @@ import (
 
 	"k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	apiserverserviceaccount "k8s.io/apiserver/pkg/authentication/serviceaccount"
 	clientset "k8s.io/client-go/kubernetes"
 	"k8s.io/client-go/kubernetes/fake"
 	certutil "k8s.io/client-go/util/cert"
@@ -304,22 +303,3 @@ func TestTokenGenerateAndValidate(t *testing.T) {
 		}
 	}
 }
-
-func TestMakeSplitUsername(t *testing.T) {
-	username := apiserverserviceaccount.MakeUsername("ns", "name")
-	ns, name, err := apiserverserviceaccount.SplitUsername(username)
-	if err != nil {
-		t.Errorf("Unexpected error %v", err)
-	}
-	if ns != "ns" || name != "name" {
-		t.Errorf("Expected ns/name, got %s/%s", ns, name)
-	}
-
-	invalid := []string{"test", "system:serviceaccount", "system:serviceaccount:", "system:serviceaccount:ns", "system:serviceaccount:ns:name:extra"}
-	for _, n := range invalid {
-		_, _, err := apiserverserviceaccount.SplitUsername("test")
-		if err == nil {
-			t.Errorf("Expected error for %s", n)
-		}
-	}
-}