diff --git a/_service b/_service
index fc02d0f..0d6320b 100644
--- a/_service
+++ b/_service
@@ -3,7 +3,7 @@
     <param name="url">https://github.com/starwing/luautf8</param>
     <param name="versionformat">@PARENT_TAG@</param>
     <param name="scm">git</param>
-    <param name="revision">a3db9cca0d7d82d78e2acaba2b5571178fcddc01</param>
+    <param name="revision">751c782864f4c636760339e16f218d6dee292d5d</param>
     <param name="versionrewrite-pattern">(\d+.\d+.\d+)</param>
     <param name="versionrewrite-replacement">\1</param>
   </service>
diff --git a/lua-luautf8.changes b/lua-luautf8.changes
index 438ca58..67c66ac 100644
--- a/lua-luautf8.changes
+++ b/lua-luautf8.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Dec  3 00:26:27 UTC 2022 - Gordon Leung <pirateclip@protonmail.com>
+
+- Update to version 0.1.5:
+ * add clean, isvalid, invalidposition functions
+
 -------------------------------------------------------------------
 Sat Nov 19 18:58:54 UTC 2022 - Gordon Leung <pirateclip@protonmail.com>
 
diff --git a/lua-luautf8.spec b/lua-luautf8.spec
index 5aa17e4..37d06cb 100644
--- a/lua-luautf8.spec
+++ b/lua-luautf8.spec
@@ -18,7 +18,7 @@
 
 %define flavor @BUILD_FLAVOR@
 %define mod_name luautf8
-%define rock_version 0.1.4-1
+%define rock_version 0.1.5-1
 %ifarch %{ix86}
  %define luarock_arch x86
 %else
@@ -28,7 +28,7 @@
   %define luarock_arch %{_arch}
  %endif
 %endif
-Version:        0.1.4
+Version:        0.1.5
 Release:        0
 Summary:        A utf-8 support module for Lua and LuaJIT
 License:        MIT
diff --git a/luautf8-0.1.4.tar.xz b/luautf8-0.1.4.tar.xz
deleted file mode 100644
index 83c1831..0000000
--- a/luautf8-0.1.4.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:017a62a91e02baad543241e5f6ad554b04e8cbaa8e251b5b91ef923d454c0a57
-size 32408
diff --git a/luautf8-0.1.5.tar.xz b/luautf8-0.1.5.tar.xz
new file mode 100644
index 0000000..111ee86
--- /dev/null
+++ b/luautf8-0.1.5.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:97b14ff3e954ce3e46d2824642cdc6d73db9283faae0f5c9a1c06fe683538520
+size 36548