diff --git a/log/log.go b/log/log.go
index a16150b..05ff921 100644
--- a/log/log.go
+++ b/log/log.go
@@ -15,7 +15,7 @@ import (
 var Logger = zlog.New(os.Stderr).With().Timestamp().Logger()
 
 func init() {
-	zlog.TimeFieldFormat = time.RFC3339Nano
+	zlog.TimeFieldFormat = time.StampMicro
 }
 
 // Output duplicates the global logger and sets w as its output.