diff --git a/Changelog b/Changelog
index 2b4cc9925..57883a5a9 100644
--- a/Changelog
+++ b/Changelog
@@ -19,6 +19,15 @@ NEWS
 * This is the Icinga 1.x development branch. If you are looking for Icinga 2.x
   please check https://www.icinga.org/icinga2
 
+1.13.4 - 22/12/2016
+
+SECURITY FIXES
+
+* Fix possible root privilege escalation during opening logs (CVE-2016-9566) #13709
+
+Icinga is **not** vulnerable to CVE-2016-9565 since we do not provide any PHP
+files nor external advertising RSS feeds inside the Classic UI.
+
 1.13.3 - 07/15/2015
 
 FIXES
diff --git a/Makefile.in b/Makefile.in
index 2514f6069..72ef8e041 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -89,7 +89,7 @@ MKDIR=/bin/mkdir
 ###############################
 # Global
 ###############################
-ICINGA_VERSION=1.13.3
+ICINGA_VERSION=1.13.4
 
 CP=@CP@
 
diff --git a/configure b/configure
index eb2efe386..f9d726a8c 100755
--- a/configure
+++ b/configure
@@ -2512,9 +2512,9 @@ ac_config_headers="$ac_config_headers include/config.h"
 
 
 PKG_NAME=icinga-core
-PKG_VERSION="1.13.3"
+PKG_VERSION="1.13.4"
 PKG_HOME_URL="http://www.icinga.org/"
-PKG_REL_DATE="07-15-2015"
+PKG_REL_DATE="12-22-2016"
 
 ac_aux_dir=
 for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
diff --git a/configure.in b/configure.in
index d507959e0..0da905608 100644
--- a/configure.in
+++ b/configure.in
@@ -9,9 +9,9 @@ AC_CONFIG_HEADER(include/config.h)
 AC_PREFIX_DEFAULT(/usr/local/icinga)
 
 PKG_NAME=icinga-core
-PKG_VERSION="1.13.3"
+PKG_VERSION="1.13.4"
 PKG_HOME_URL="http://www.icinga.org/"
-PKG_REL_DATE="07-15-2015"
+PKG_REL_DATE="12-22-2016"
 
 dnl Figure out how to invoke "install" and what install options to use.
 AC_PROG_INSTALL
diff --git a/html/main.html b/html/main.html
index 95ad8ccde..500b6968d 100644
--- a/html/main.html
+++ b/html/main.html
@@ -18,9 +18,9 @@
 </div>
 
 <div id="currentversioninfo">
-<div class="version">Version 1.13.3</div>
-<div class="releasedate">Juli 15, 2015</div>
-<div class="whatsnew"><a href="docs/en/whatsnew.html">Read what's new in Icinga 1.13.3</a></div>
+<div class="version">Version 1.13.4</div>
+<div class="releasedate">December 22, 2016</div>
+<div class="whatsnew"><a href="docs/en/whatsnew.html">Read what's new in Icinga 1.13.4</a></div>
 </div>
 
 <div id="developer">
diff --git a/icinga.spec b/icinga.spec
index d7222dfad..273296c1c 100644
--- a/icinga.spec
+++ b/icinga.spec
@@ -54,7 +54,7 @@
 
 Summary: Open Source host, service and network monitoring program
 Name: icinga
-Version: 1.13.3
+Version: 1.13.4
 Release: %{revision}%{?dist}
 License: GPLv2
 Group: Applications/System
diff --git a/include/common.h b/include/common.h
index 3204d49ba..17edf05a5 100644
--- a/include/common.h
+++ b/include/common.h
@@ -27,8 +27,8 @@
 #define PROGRAM_NAME "Icinga"
 #define PROGRAM_NAME_UC "ICINGA"
 #define PROGRAM_NAME_LC "icinga"
-#define PROGRAM_VERSION "1.13.3"
-#define PROGRAM_MODIFICATION_DATE "07-15-2015"
+#define PROGRAM_VERSION "1.13.4"
+#define PROGRAM_MODIFICATION_DATE "12-22-2016"
 
 /*#define DEBUG_CHECK_IPC 1 */
 /*#define DEBUG_CHECK_IPC2 1*/
diff --git a/module/idoutils/include/common.h b/module/idoutils/include/common.h
index 1abe12095..9381621bd 100644
--- a/module/idoutils/include/common.h
+++ b/module/idoutils/include/common.h
@@ -22,8 +22,8 @@
 #define LOG2IDO_NAME 		"LOG2IDO"
 
 /* only one space for update-version matching */
-#define IDO_DATE "07-15-2015"
-#define IDO_VERSION "1.13.3"
+#define IDO_DATE "12-22-2016"
+#define IDO_VERSION "1.13.4"
 
 #define IDO_SCHEMA_VERSION "1.13.0"
 
diff --git a/update-version b/update-version
index d83c82f4e..e67290fbe 100755
--- a/update-version
+++ b/update-version
@@ -10,10 +10,10 @@ else
 fi
 
 # Current version number
-CURRENTVERSION=1.13.3
+CURRENTVERSION=1.13.4
 
 # Last date
-LASTDATE=07-15-2015
+LASTDATE=12-22-2016
 
 if [ "x$1" = "x" ]
 then