diff --git a/lib/resty/ssl-cert-server.lua b/lib/resty/ssl-cert-server.lua
index 59c0842..29ee9c4 100644
--- a/lib/resty/ssl-cert-server.lua
+++ b/lib/resty/ssl-cert-server.lua
@@ -21,7 +21,7 @@ local table_insert = table.insert
 
 local err_204_no_content = "204 no content"
 
-local _M = { _VERSION = '0.4.2' }
+local _M = { _VERSION = '0.4.3' }
 
 -- We need to initialize the cache on the lua module level so that
 -- it can be shared by all the requests served by each nginx worker process.
diff --git a/main.go b/main.go
index 6856f0c..52ea34f 100644
--- a/main.go
+++ b/main.go
@@ -18,7 +18,7 @@ import (
 	"github.com/jxskiss/ssl-cert-server/server"
 )
 
-const VERSION = "0.4.2"
+const VERSION = "0.4.3"
 
 // StringArray implements flag.Value interface.
 type StringArray []string