diff --git a/go.mod b/go.mod
index a165c24..a2355c7 100644
--- a/go.mod
+++ b/go.mod
@@ -2,6 +2,6 @@ module github.com/seipan/mylb
 
 go 1.20
 
-require go.uber.org/zap v1.26.0
+require go.uber.org/zap v1.27.0
 
 require go.uber.org/multierr v1.10.0 // indirect
diff --git a/go.sum b/go.sum
index 60d98fd..6d7d557 100644
--- a/go.sum
+++ b/go.sum
@@ -6,4 +6,6 @@ go.uber.org/multierr v1.10.0 h1:S0h4aNzvfcFsC3dRF1jLoaov7oRaKqRGC/pUEJ2yvPQ=
 go.uber.org/multierr v1.10.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
 go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
 go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
+go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8=
+go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=