diff --git a/src/core/nginx.h b/src/core/nginx.h
index 868817322..3e7c4a1ce 100644
--- a/src/core/nginx.h
+++ b/src/core/nginx.h
@@ -8,7 +8,7 @@
 #define _NGINX_H_INCLUDED_
 
 
-#define NGINX_VERSION      "0.5.30"
+#define NGINX_VERSION      "0.5.31"
 #define NGINX_VER          "nginx/" NGINX_VERSION
 
 #define NGINX_VAR          "NGINX"
diff --git a/src/http/modules/perl/nginx.pm b/src/http/modules/perl/nginx.pm
index 8933e2c62..b87a33ef0 100644
--- a/src/http/modules/perl/nginx.pm
+++ b/src/http/modules/perl/nginx.pm
@@ -47,7 +47,7 @@ our @EXPORT = qw(
     HTTP_INSUFFICIENT_STORAGE
 );
 
-our $VERSION = '0.5.30';
+our $VERSION = '0.5.31';
 
 require XSLoader;
 XSLoader::load('nginx', $VERSION);