diff --git a/vendor/go.uber.org/zap/zapcore/memory_encoder.go b/vendor/go.uber.org/zap/zapcore/memory_encoder.go
index 6ef85b0..dfead08 100644
--- a/vendor/go.uber.org/zap/zapcore/memory_encoder.go
+++ b/vendor/go.uber.org/zap/zapcore/memory_encoder.go
@@ -158,7 +158,7 @@
 }
 
 func (s *sliceArrayEncoder) AppendBool(v bool)              { s.elems = append(s.elems, v) }
-func (s *sliceArrayEncoder) AppendByteString(v []byte)      { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendByteString(v []byte)      { s.elems = append(s.elems, string(v)) }
 func (s *sliceArrayEncoder) AppendComplex128(v complex128)  { s.elems = append(s.elems, v) }
 func (s *sliceArrayEncoder) AppendComplex64(v complex64)    { s.elems = append(s.elems, v) }
 func (s *sliceArrayEncoder) AppendDuration(v time.Duration) { s.elems = append(s.elems, v) }