diff --git a/CHANGELOG b/CHANGELOG
index 177774814..d5e78115f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,4 @@
-* 1.9.1 (2012-XX-XX)
+* 1.9.1 (2012-07-22)
 
  * optimized macro calls when auto-escaping is on
  * fixed wrong parent class for Twig_Function_Node
diff --git a/ext/twig/php_twig.h b/ext/twig/php_twig.h
index fb8a42506..3fa3d1db2 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 "1.9.1-DEV"
+#define PHP_TWIG_VERSION "1.9.1"
 
 #include "php.h"
 
diff --git a/lib/Twig/Environment.php b/lib/Twig/Environment.php
index 26633a049..63e9f8e31 100644
--- a/lib/Twig/Environment.php
+++ b/lib/Twig/Environment.php
@@ -17,7 +17,7 @@
  */
 class Twig_Environment
 {
-    const VERSION = '1.9.1-DEV';
+    const VERSION = '1.9.1';
 
     protected $charset;
     protected $loader;