diff --git a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go
index 6f6c511..cdd9a6a 100644
--- a/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go
+++ b/vendor/k8s.io/apimachinery/pkg/apis/meta/v1/micro_time.go
@@ -41,11 +41,6 @@
 	*out = *t
 }
 
-// String returns the representation of the time.
-func (t MicroTime) String() string {
-	return t.Time.String()
-}
-
 // NewMicroTime returns a wrapped instance of the provided time
 func NewMicroTime(time time.Time) MicroTime {
 	return MicroTime{time}
@@ -72,22 +67,40 @@
 
 // Before reports whether the time instant t is before u.
 func (t *MicroTime) Before(u *MicroTime) bool {
-	return t.Time.Before(u.Time)
+	if t != nil && u != nil {
+		return t.Time.Before(u.Time)
+	}
+	return false
 }
 
 // Equal reports whether the time instant t is equal to u.
 func (t *MicroTime) Equal(u *MicroTime) bool {
-	return t.Time.Equal(u.Time)
+	if t == nil && u == nil {
+		return true
+	}
+	if t != nil && u != nil {
+		return t.Time.Equal(u.Time)
+	}
+	return false
 }
 
 // BeforeTime reports whether the time instant t is before second-lever precision u.
 func (t *MicroTime) BeforeTime(u *Time) bool {
-	return t.Time.Before(u.Time)
+	if t != nil && u != nil {
+		return t.Time.Before(u.Time)
+	}
+	return false
 }
 
 // EqualTime reports whether the time instant t is equal to second-lever precision u.
 func (t *MicroTime) EqualTime(u *Time) bool {
-	return t.Time.Equal(u.Time)
+	if t == nil && u == nil {
+		return true
+	}
+	if t != nil && u != nil {
+		return t.Time.Equal(u.Time)
+	}
+	return false
 }
 
 // UnixMicro returns the local time corresponding to the given Unix time