diff --git a/CMakeLists.txt b/CMakeLists.txt
index e4970766..098f5030 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,6 @@
 cmake_minimum_required(VERSION 3.5.1)
 
-project(RCSSServer VERSION 18.1.2)
+project(RCSSServer VERSION 18.1.3)
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
diff --git a/ChangeLog b/ChangeLog
index 9b9d0c9f..1f1f573d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2023-04-29  Hidehisa Akiyama  <hidehisaakiyama@users.noreply.github.com>
+
+	* CMakeLists.txt:
+	* NEWS:
+	* configure.ac:
+	- update a point version number. Official release 18.1.3.
+	- Fix an issue in PenaltyRef. Thanks go to Omid Amini for
+	providing the patch.
+
 2023-03-17  Hidehisa Akiyama  <hidehisaakiyama@users.noreply.github.com>
 
 	* CMakeLists.txt:
diff --git a/NEWS b/NEWS
index 79e5668c..89a04859 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,9 @@
+[18.1.3]
+  * Fix an issue in the penalty shootouts referee. If both teams
+  	score the same when finishing all extended trials, the penalty
+	shootouts referee will not end the game and the simulator will
+	get stuck. Thanks go to Omid Amini for providing the patch.
+
 [18.1.2]
   * Fix a problem of v18 observation noise model. Quantized distance
     values affected by the focus point are now rounded to one decimal
diff --git a/configure.ac b/configure.ac
index d0e07e61..56c817e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3,7 +3,7 @@
 
 AC_PREREQ([2.69])
 LT_PREREQ([2.2])
-AC_INIT([RCSSServer],[18.1.2],[https://github.com/rcsoccersim/],[rcssserver])
+AC_INIT([RCSSServer],[18.1.3],[https://github.com/rcsoccersim/],[rcssserver])
 
 #AM_INIT_AUTOMAKE([gnu 1.7.2 check-news dist-bzip2 dist-zip])
 AM_INIT_AUTOMAKE([gnu 1.7.2 check-news foreign])