diff --git a/libclc-17.0.1.src.tar.xz b/libclc-17.0.1.src.tar.xz
deleted file mode 100644
index 9ada490..0000000
--- a/libclc-17.0.1.src.tar.xz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:90a645ec680ac9f39acbe2aeadbdbf7e5e20cc3cce647266e4fc6c8ca11bec34
-size 126340
diff --git a/libclc-17.0.1.src.tar.xz.sig b/libclc-17.0.1.src.tar.xz.sig
deleted file mode 100644
index 7412b6a..0000000
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diff --git a/libclc-18.1.0.src.tar.xz b/libclc-18.1.0.src.tar.xz
new file mode 100644
index 0000000..b57a1c9
--- /dev/null
+++ b/libclc-18.1.0.src.tar.xz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:a2faf505c8c1703c21a2999a10b0f0b4d24180f407b1cafe8d08d04cedc30e5b
+size 126568
diff --git a/libclc-18.1.0.src.tar.xz.sig b/libclc-18.1.0.src.tar.xz.sig
new file mode 100644
index 0000000..e7fd1bf
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diff --git a/libclc.changes b/libclc.changes
index 2804de6..76bbd35 100644
--- a/libclc.changes
+++ b/libclc.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sat Mar  9 22:30:18 UTC 2024 - Aaron Puchert <aaronpuchert@alice-dsl.net>
+
+- Update to version 18.1.0.
+  * Fix signed integer underflow in abs_diff.
+  * Teach prepare-builtins how to handle text-based IR.
+  * Add half implementation for erf/erfc.
+  * Add missing AMD gfx symlinks.
+
 -------------------------------------------------------------------
 Mon Nov 20 12:57:41 UTC 2023 - Stefan Dirsch <sndirsch@suse.com>
 
diff --git a/libclc.spec b/libclc.spec
index 3d709ba..52524f8 100644
--- a/libclc.spec
+++ b/libclc.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libclc
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -16,7 +16,7 @@
 #
 
 
-%define _libclc_llvm_ver 17.0.1
+%define _libclc_llvm_ver 18.1.0
 %define _version %_libclc_llvm_ver%{?_rc:rc%_rc}
 %define _tagver %_libclc_llvm_ver%{?_rc:-rc%_rc}