diff --git a/_service b/_service
index 573ed4b..fde2cf9 100644
--- a/_service
+++ b/_service
@@ -2,8 +2,8 @@
     <service name="tar_scm" mode="disabled">
         <param name="scm">git</param>
         <param name="url">git://github.com/assimp/assimp</param>
-        <param name="revision">v5.1.2</param>
-        <param name="versionformat">5.1.2</param>
+        <param name="revision">v5.1.3</param>
+        <param name="versionformat">5.1.3</param>
         <!-- non-OSI media -->
         <param name="exclude">test/models-nonbsd</param>
     </service>
diff --git a/assimp-5.1.3.tar.xz b/assimp-5.1.3.tar.xz
new file mode 100644
index 0000000..8657d60
--- /dev/null
+++ b/assimp-5.1.3.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c5f5e9d22011bfc5cae35085640f37f6f19760029d57b8d2a94e0de8bac130f0
+size 24587948
diff --git a/assimp.changes b/assimp.changes
index f00befc..2bc5060 100644
--- a/assimp.changes
+++ b/assimp.changes
@@ -1,3 +1,13 @@
+-------------------------------------------------------------------
+Sun Dec  5 08:52:33 UTC 2021 - Christophe Giboudeaux <christophe@krop.fr>
+
+- Update to 5.1.3
+  * Update blender importer to work with Blender 2.8+ files
+  * Added checks for out of bounds data access/writing
+  * Interpolate euler rotations for quaternion animations
+  * Fix file-extension check for X3D-files
+  * Update CMakeLists.txt
+
 -------------------------------------------------------------------
 Thu Dec  2 12:05:31 UTC 2021 - Christophe Giboudeaux <christophe@krop.fr>
 
diff --git a/assimp.spec b/assimp.spec
index 6851851..41a6fc2 100644
--- a/assimp.spec
+++ b/assimp.spec
@@ -18,7 +18,7 @@
 
 %define sover 5
 Name:           assimp
-Version:        5.1.2
+Version:        5.1.3
 Release:        0
 Summary:        Library to load and process 3D scenes from various data formats
 License:        BSD-3-Clause AND MIT