diff --git a/spirv-headers.changes b/spirv-headers.changes
index 4f75afb..ae02a15 100644
--- a/spirv-headers.changes
+++ b/spirv-headers.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Thu May 16 11:38:08 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release SDK-1.3.283.0
+  * Update bit reservations for loop control and memory operands
+
 -------------------------------------------------------------------
 Fri Apr 12 17:11:55 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/spirv-headers.spec b/spirv-headers.spec
index 03a6ebb..6e6cf31 100644
--- a/spirv-headers.spec
+++ b/spirv-headers.spec
@@ -21,11 +21,11 @@
 # CMakeLists.txt's project() line contains 1.5.5, but this is outdated too.
 # The SPIR-V version is 1.6.1 (include/spirv/unified1/spirv.core.grammar.json)
 # They add "SDK" tags that reflect the Vulkan version (1.3),
-# and the independently increasing toolchain release number (239).
+# and the independently increasing toolchain release number (283).
 
 Name:           spirv-headers
-Version:        1.6.1+sdk280
-%define innerver 1.3.280
+Version:        1.6.1+sdk283
+%define innerver 1.3.283
 Release:        0
 Summary:        Machine-readable files from the SPIR-V registry
 License:        MIT
diff --git a/vulkan-sdk-1.3.280.tar.gz b/vulkan-sdk-1.3.280.tar.gz
deleted file mode 100644
index 692b9c9..0000000
--- a/vulkan-sdk-1.3.280.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:83c0e61765d423a8f9599fe332b6d77930f4105ca7426a11722b742dba6e0452
-size 472098
diff --git a/vulkan-sdk-1.3.283.tar.gz b/vulkan-sdk-1.3.283.tar.gz
new file mode 100644
index 0000000..c194065
--- /dev/null
+++ b/vulkan-sdk-1.3.283.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:1c1bf1b9951a06d20329871ca8415b8ff5d0bebbc2f49cfd06fd095313e20dee
+size 472243