diff --git a/CHANGES b/CHANGES
index 3a755f27..00870f28 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,7 @@
+05 Feb 2010 - 2.5.13-dev1
+-------------------------
+
+
 04 Feb 2010 - 2.5.12
 --------------------
 
diff --git a/apache2/msc_release.h b/apache2/msc_release.h
index 1b1d0d00..ed4cd94a 100644
--- a/apache2/msc_release.h
+++ b/apache2/msc_release.h
@@ -48,9 +48,9 @@ extern DSOLOCAL modsec_build_type_rec modsec_build_type[];
 
 #define MODSEC_VERSION_MAJOR       "2"
 #define MODSEC_VERSION_MINOR       "5"
-#define MODSEC_VERSION_MAINT       "12"
-#define MODSEC_VERSION_TYPE        ""
-#define MODSEC_VERSION_RELEASE     ""
+#define MODSEC_VERSION_MAINT       "13"
+#define MODSEC_VERSION_TYPE        "dev"
+#define MODSEC_VERSION_RELEASE     "1"
 
 #define MODSEC_VERSION_SUFFIX MODSEC_VERSION_TYPE MODSEC_VERSION_RELEASE
 
diff --git a/doc/modsecurity2-apache-reference.xml b/doc/modsecurity2-apache-reference.xml
index 9c94253b..a5e3b047 100644
--- a/doc/modsecurity2-apache-reference.xml
+++ b/doc/modsecurity2-apache-reference.xml
@@ -6,7 +6,7 @@
   Manual</title>
 
   <articleinfo>
-    <releaseinfo>Version 2.5.12 (Feb 3, 2010)</releaseinfo>
+    <releaseinfo>Version 2.5.13-dev1 (Feb 5, 2010)</releaseinfo>
 
     <copyright>
       <year>2004-2010</year>