diff --git a/ext/twig/php_twig.h b/ext/twig/php_twig.h
index e48061384..a73150519 100644
--- a/ext/twig/php_twig.h
+++ b/ext/twig/php_twig.h
@@ -15,7 +15,7 @@
 #ifndef PHP_TWIG_H
 #define PHP_TWIG_H
 
-#define PHP_TWIG_VERSION "1.12.0-DEV"
+#define PHP_TWIG_VERSION "1.12.0-RC1"
 
 #include "php.h"
 
diff --git a/lib/Twig/Environment.php b/lib/Twig/Environment.php
index d8e700ef4..c2480d535 100644
--- a/lib/Twig/Environment.php
+++ b/lib/Twig/Environment.php
@@ -17,7 +17,7 @@
  */
 class Twig_Environment
 {
-    const VERSION = '1.12.0-DEV';
+    const VERSION = '1.12.0-RC1';
 
     protected $charset;
     protected $loader;