diff --git a/CMakeLists.txt b/CMakeLists.txt
index eefb15ea7f..1f890da833 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@ string(TIMESTAMP TODAY "%Y%m%d")
 set(VERSION_SUFFIX "")
 
 project( ClamAV
-         VERSION "1.3.0"
+         VERSION "1.3.1"
          DESCRIPTION "ClamAV open source email, web, and end-point anti-virus toolkit." )
 
 set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake" ${CMAKE_MODULE_PATH})
diff --git a/Jenkinsfile b/Jenkinsfile
index 5d2c564e16..2ffb577b82 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,7 +10,7 @@ properties(
         parameters(
             [
                 string(name: 'VERSION',
-                       defaultValue: '1.3.0',
+                       defaultValue: '1.3.1',
                        description: 'ClamAV version string'),
                 string(name: 'FRAMEWORK_BRANCH',
                        defaultValue: '1.3',
diff --git a/NEWS.md b/NEWS.md
index 15eb18c465..415dcdafb1 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -3,6 +3,10 @@
 Note: This file refers to the official packages. Things described here may
 differ slightly from third-party binary packages.
 
+## 1.3.1
+
+ClamAV 1.3.1 is a critical patch release with the following fix:
+
 ## 1.3.0
 
 ClamAV 1.3.0 includes the following improvements and changes:
diff --git a/libclamav/bytecode_api.h b/libclamav/bytecode_api.h
index 7c0bb9919f..d7b3299125 100644
--- a/libclamav/bytecode_api.h
+++ b/libclamav/bytecode_api.h
@@ -172,16 +172,17 @@ enum FunctionalityLevels {
     FUNC_LEVEL_1_0_4 = 164, /**< LibClamAV release 1.0.4 */
     FUNC_LEVEL_1_0_5 = 165, /**< LibClamAV release 1.0.5 */
 
-    FUNC_LEVEL_1_1 = 180, /**< LibClamAV release 1.1.0 */
+    FUNC_LEVEL_1_1   = 180, /**< LibClamAV release 1.1.0 */
     FUNC_LEVEL_1_1_1 = 181, /**< LibClamAV release 1.1.1 */
     FUNC_LEVEL_1_1_2 = 182, /**< LibClamAV release 1.1.2 */
     FUNC_LEVEL_1_1_3 = 183, /**< LibClamAV release 1.1.3 */
 
-    FUNC_LEVEL_1_2 = 190, /**< LibClamAV release 1.2.0 */
+    FUNC_LEVEL_1_2   = 190, /**< LibClamAV release 1.2.0 */
     FUNC_LEVEL_1_2_1 = 191, /**< LibClamAV release 1.2.1 */
     FUNC_LEVEL_1_2_2 = 192, /**< LibClamAV release 1.2.2 */
 
-    FUNC_LEVEL_1_3 = 200, /**< LibClamAV release 1.3.0 */
+    FUNC_LEVEL_1_3   = 200, /**< LibClamAV release 1.3.0 */
+    FUNC_LEVEL_1_3_1 = 201, /**< LibClamAV release 1.3.1 */
 };
 
 /**
diff --git a/libclamav/others.h b/libclamav/others.h
index 670189af88..703a5f1cf1 100644
--- a/libclamav/others.h
+++ b/libclamav/others.h
@@ -73,7 +73,7 @@
  * in re-enabling affected modules.
  */
 
-#define CL_FLEVEL 200
+#define CL_FLEVEL 201
 #define CL_FLEVEL_DCONF CL_FLEVEL
 #define CL_FLEVEL_SIGTOOL CL_FLEVEL