diff --git a/0001-Use-system-third-party-libs.patch b/0001-Use-system-third-party-libs.patch
index b109fd8..deb5e51 100644
--- a/0001-Use-system-third-party-libs.patch
+++ b/0001-Use-system-third-party-libs.patch
@@ -4,11 +4,11 @@
  utils/update_build_version.sh |    1 +
  3 files changed, 4 insertions(+), 2 deletions(-)
 
-Index: shaderc-2023.2/CMakeLists.txt
+Index: shaderc-2023.8/CMakeLists.txt
 ===================================================================
---- shaderc-2023.2.orig/CMakeLists.txt
-+++ shaderc-2023.2/CMakeLists.txt
-@@ -130,7 +130,6 @@ endif(MSVC)
+--- shaderc-2023.8.orig/CMakeLists.txt
++++ shaderc-2023.8/CMakeLists.txt
+@@ -124,7 +124,6 @@ endif(MSVC)
  
  # Configure subdirectories.
  # We depend on these for later projects, so they should come first.
@@ -16,7 +16,7 @@ Index: shaderc-2023.2/CMakeLists.txt
  
  add_subdirectory(libshaderc_util)
  add_subdirectory(libshaderc)
-@@ -141,7 +140,7 @@ endif()
+@@ -135,7 +134,7 @@ endif()
  
  add_custom_target(build-version
    ${PYTHON_EXECUTABLE}
@@ -25,10 +25,10 @@ Index: shaderc-2023.2/CMakeLists.txt
    ${shaderc_SOURCE_DIR} ${spirv-tools_SOURCE_DIR} ${glslang_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}/build-version.inc
    COMMENT "Update build-version.inc in the Shaderc build directory (if necessary).")
  
-Index: shaderc-2023.2/libshaderc/CMakeLists.txt
+Index: shaderc-2023.8/libshaderc/CMakeLists.txt
 ===================================================================
---- shaderc-2023.2.orig/libshaderc/CMakeLists.txt
-+++ shaderc-2023.2/libshaderc/CMakeLists.txt
+--- shaderc-2023.8.orig/libshaderc/CMakeLists.txt
++++ shaderc-2023.8/libshaderc/CMakeLists.txt
 @@ -67,6 +67,8 @@ set(SHADERC_LIBS
    shaderc_util
    SPIRV # from glslang
@@ -38,9 +38,9 @@ Index: shaderc-2023.2/libshaderc/CMakeLists.txt
  )
  
  target_link_libraries(shaderc PRIVATE ${SHADERC_LIBS})
-Index: shaderc-2023.2/utils/update_build_version.sh
+Index: shaderc-2023.8/utils/update_build_version.sh
 ===================================================================
 --- /dev/null
-+++ shaderc-2023.2/utils/update_build_version.sh
++++ shaderc-2023.8/utils/update_build_version.sh
 @@ -0,0 +1 @@
 +#!/bin/true
diff --git a/shaderc.changes b/shaderc.changes
index 2cd8ccd..12ad3f4 100644
--- a/shaderc.changes
+++ b/shaderc.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Jan 19 13:04:49 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 2023.8
+  * API: Expose rlaxed Vulkan rules from glslang
+
 -------------------------------------------------------------------
 Thu Nov  9 15:46:07 UTC 2023 - Dominique Leuenberger <dimstar@opensuse.org>
 
diff --git a/shaderc.spec b/shaderc.spec
index bb2bdf1..f271e9e 100644
--- a/shaderc.spec
+++ b/shaderc.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package shaderc
 #
-# 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
@@ -19,7 +19,7 @@
 # Remember to bump in baselibs.conf
 %define lname libshaderc_shared1
 Name:           shaderc
-Version:        2023.7
+Version:        2023.8
 Release:        0
 Summary:        A collection of tools, libraries and tests for shader compilation
 License:        Apache-2.0
@@ -31,10 +31,11 @@ Source99:       baselibs.conf
 Patch1:         0001-Use-system-third-party-libs.patch
 BuildRequires:  c++_compiler
 BuildRequires:  cmake >= 2.8.12
-BuildRequires:  glslang-devel >= 12.3.1+sdk261
+BuildRequires:  glslang-devel >= 14
 BuildRequires:  glslang-nonstd-devel
-BuildRequires:  spirv-headers >= 1.6.1~sdk261
-BuildRequires:  spirv-tools-devel >= 2023.4~rc2
+BuildRequires:  python3-base
+BuildRequires:  spirv-headers >= 1.6.1~sdk275
+BuildRequires:  spirv-tools-devel >= 2023.6~rc1
 
 %description
 A collection of tools, libraries and tests for shader compilation.
@@ -68,6 +69,7 @@ Shaderc wraps around core functionality in glslang and SPIRV-Tools
 %autosetup -p1
 chmod a+x utils/update_build_version.sh
 echo "\"%version\"" >glslc/src/build-version.inc
+find . -type f -exec grep -l '#!/usr/bin/env python' {} + | xargs perl -i -lpe 's{/env python\w*}{/python3}g'
 
 %build
 export CXXFLAGS="%{optflags} -I%_includedir/External"
diff --git a/v2023.7.tar.gz b/v2023.7.tar.gz
deleted file mode 100644
index 97118dd..0000000
--- a/v2023.7.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:681e1340726a0bf46bea7e31f10cbfe78e01e4446a35d90fedc2b78d400fcdeb
-size 227360
diff --git a/v2023.8.tar.gz b/v2023.8.tar.gz
new file mode 100644
index 0000000..24216c6
--- /dev/null
+++ b/v2023.8.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:dfec5045f30d8f6d3d3914ab5b3cc2695947f266d41261b1459177cd789308d1
+size 227238