diff --git a/0001-Revert-CMake-Make-glslang-default-resource-limits-ST.patch b/0001-Revert-CMake-Make-glslang-default-resource-limits-ST.patch
deleted file mode 100644
index 76afac9..0000000
--- a/0001-Revert-CMake-Make-glslang-default-resource-limits-ST.patch
+++ /dev/null
@@ -1,23 +0,0 @@
-From 949e46a187d4d97d6a63495ba76438523f021015 Mon Sep 17 00:00:00 2001
-From: Jan Engelhardt <jengelh@inai.de>
-Date: Wed, 23 Aug 2023 00:16:04 +0200
-Subject: [PATCH] Revert "CMake: Make glslang-default-resource-limits STATIC"
-
-This reverts commit 6f22e41e0de13aff75807cca9662730d8b3e54b6.
----
- glslang/CMakeLists.txt |    2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-Index: glslang-sdk-1.3.261.0/glslang/CMakeLists.txt
-===================================================================
---- glslang-sdk-1.3.261.0.orig/glslang/CMakeLists.txt
-+++ glslang-sdk-1.3.261.0/glslang/CMakeLists.txt
-@@ -195,7 +195,7 @@ set(RESOURCELIMITS_HEADERS
-   Public/resource_limits_c.h
- )
- 
--add_library(glslang-default-resource-limits STATIC ${RESOURCELIMITS_SOURCES} ${RESOURCELIMITS_HEADERS})
-+add_library(glslang-default-resource-limits ${RESOURCELIMITS_SOURCES} ${RESOURCELIMITS_HEADERS})
- set_target_properties(glslang-default-resource-limits PROPERTIES
-     VERSION "${GLSLANG_VERSION}"
-     SOVERSION "${GLSLANG_VERSION_MAJOR}"
diff --git a/13.0.0.tar.gz b/13.0.0.tar.gz
deleted file mode 100644
index 601dca0..0000000
--- a/13.0.0.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:bcda732434f829aa74414ea0e06d329ec8ac28637c38a0de45e17c8fd25a4715
-size 3710806
diff --git a/13.1.1.tar.gz b/13.1.1.tar.gz
new file mode 100644
index 0000000..c068244
--- /dev/null
+++ b/13.1.1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1c4d0a5a38c8aaf89a2d7e6093be734320599f5a6775b2726beeb05b0c054e66
+size 3763210
diff --git a/glslang.changes b/glslang.changes
index 3f74dac..1f580fb 100644
--- a/glslang.changes
+++ b/glslang.changes
@@ -1,3 +1,12 @@
+-------------------------------------------------------------------
+Sun Oct 22 02:09:01 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 13.1.1
+  * Support GL_EXT_texture_shadow_lod, GL_NV_displacement_micromap
+  * Add --no-link option
+- Drop merged
+  0001-Revert-CMake-Make-glslang-default-resource-limits-ST.patch
+
 -------------------------------------------------------------------
 Wed Sep  6 22:49:08 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/glslang.spec b/glslang.spec
index f9b3895..c8cafa3 100644
--- a/glslang.spec
+++ b/glslang.spec
@@ -18,7 +18,7 @@
 
 %define lname libglslang13
 Name:           glslang
-Version:        13.0.0
+Version:        13.1.1
 Release:        0
 Summary:        OpenGL and OpenGL ES shader front end and validator
 License:        BSD-3-Clause
@@ -27,12 +27,12 @@ URL:            https://www.khronos.org/opengles/sdk/tools/Reference-Compiler/
 #Git-URL:	https://github.com/KhronosGroup/glslang
 Source:         https://github.com/KhronosGroup/glslang/archive/%version.tar.gz
 Source3:        baselibs.conf
-Patch1:         0001-Revert-CMake-Make-glslang-default-resource-limits-ST.patch
 BuildRequires:  bison
 BuildRequires:  cmake >= 3.14.0
 BuildRequires:  fdupes
 BuildRequires:  gcc-c++
 BuildRequires:  python3-base
+BuildRequires:  spirv-tools-devel
 
 %description
 glslang is a compiler front end for the OpenGL ES and OpenGL shading
@@ -88,7 +88,8 @@ but which some downstream packages rely on.
 # ABI keeps on breaking (gh#3052 #3311 #3312)
 echo "V_%version { global: *; };" >/tmp/z.sym
 # Trim -Wl,--no-undefined for now (https://github.com/KhronosGroup/glslang/issues/1484)
-%cmake -DCMAKE_SHARED_LINKER_FLAGS="-Wl,--as-needed -Wl,-z,now"
+%cmake -DCMAKE_SHARED_LINKER_FLAGS="-Wl,--as-needed -Wl,-z,now" \
+	-DALLOW_EXTERNAL_SPIRV_TOOLS:BOOL=ON -DENABLE_OPT:BOOL=ON
 %make_build
 
 %install