diff --git a/baselibs.conf b/baselibs.conf
index 6a32092..65c8737 100644
--- a/baselibs.conf
+++ b/baselibs.conf
@@ -1,4 +1,4 @@
-libSPIRV-Tools-2023_5_rc1
+libSPIRV-Tools-2023_6_rc1
 spirv-tools-devel
 	requires -spirv-tools-<targettype>
-	requires "libSPIRV-Tools-2023_5_rc1-<targettype> = <version>"
+	requires "libSPIRV-Tools-2023_6_rc1-<targettype> = <version>"
diff --git a/spirv-tools.changes b/spirv-tools.changes
index 010b374..a4d9e24 100644
--- a/spirv-tools.changes
+++ b/spirv-tools.changes
@@ -1,3 +1,17 @@
+-------------------------------------------------------------------
+Fri Dec 22 20:14:02 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 2023.6~rc1
+  * spirv-val: Loosen restriction on base type of
+    DebugTypePointer and DebugTypeQualifier
+  * spirv-val: Add WorkgroupMemoryExplicitLayoutKHR check for Block
+  * opt: Add ComputeDerivativeGroup*NV capabilities to trim
+    capabilities pass
+  * opt: Do not crash when tryingto fold unsupported spec constant
+  * opt: support 64-bit OpAccessChain index in FixStorageClass
+  * opt: add StorageImageReadWithoutFormat to cap trim
+  * opt: add PhysicalStorageBufferAddresses to trim
+
 -------------------------------------------------------------------
 Fri Oct 27 04:03:44 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/spirv-tools.spec b/spirv-tools.spec
index 9041580..c764df3 100644
--- a/spirv-tools.spec
+++ b/spirv-tools.spec
@@ -17,16 +17,16 @@
 
 
 %define _lto_cflags %nil
-%define lname libSPIRV-Tools-2023_5_rc1
+%define lname libSPIRV-Tools-2023_6_rc1
 
 Name:           spirv-tools
-Version:        2023.5~rc1
+Version:        2023.6~rc1
 Release:        0
 Summary:        API and commands for processing SPIR-V modules
 License:        Apache-2.0
 Group:          Development/Libraries/C and C++
 URL:            https://github.com/KhronosGroup/SPIRV-Tools
-Source:         https://github.com/KhronosGroup/SPIRV-Tools/archive/refs/tags/v2023.5.rc1.tar.gz
+Source:         https://github.com/KhronosGroup/SPIRV-Tools/archive/refs/tags/v2023.6.rc1.tar.gz
 #Source:         https://github.com/KhronosGroup/SPIRV-Tools/archive/refs/tags/sdk-1.3.268.0.tar.gz
 Source9:        baselibs.conf
 Patch1:         ver.diff
@@ -68,7 +68,7 @@ validator, and is used in the standalone tools whilst also enabling
 integration into other code bases directly.
 
 %prep
-%autosetup -p1 -n SPIRV-Tools-2023.5.rc1
+%autosetup -p1 -n SPIRV-Tools-2023.6.rc1
 find . -type f -name CMakeLists.txt -exec \
 	perl -i -pe 's{\@PACKAGE_VERSION\@}{%version}' CMakeLists.txt {} +
 
diff --git a/v2023.5.rc1.tar.gz b/v2023.5.rc1.tar.gz
deleted file mode 100644
index e821c87..0000000
--- a/v2023.5.rc1.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:aed90b51ce884ce3ac267acec75e785ee743a1e1fd294c25be33b49c5804d77c
-size 3147730
diff --git a/v2023.6.rc1.tar.gz b/v2023.6.rc1.tar.gz
new file mode 100644
index 0000000..284d10d
--- /dev/null
+++ b/v2023.6.rc1.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:750e4bfcaccd636fb04dd912b668a8a6d29940f8f83b7d9a266170b1023a1a89
+size 3151486