diff --git a/toolchains/toolchain-sources.lock.json b/toolchains/toolchain-sources.lock.json
index 956e6724..b9f537ce 100644
--- a/toolchains/toolchain-sources.lock.json
+++ b/toolchains/toolchain-sources.lock.json
@@ -4,33 +4,33 @@
   "assets": [
     {
       "id": "llvm-source",
-      "version": "23.1.2",
-      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/llvm-project-23.1.2.src.tar.xz",
-      "size": 179200068,
-      "sha256": "c98bbef08a2b4c2613cd50e9aa9ae7b69b1fe6c16b2c40373bc0ab6116fdf78a",
-      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/llvm-project-23.1.2.src.tar.xz.sig",
+      "version": "23.1.3",
+      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/llvm-project-23.1.3.src.tar.xz",
+      "size": 179220548,
+      "sha256": "c44186a7762ed28954be72e5ff6df9808e0779d4f1bf014ecc4e7e211d31ee34",
+      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/llvm-project-23.1.3.src.tar.xz.sig",
       "license": "Apache-2.0 WITH LLVM-exception",
-      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.2/LICENSE.TXT"
+      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.3/LICENSE.TXT"
     },
     {
       "id": "llvm-linux-amd64",
-      "version": "23.1.2",
-      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/LLVM-23.1.2-Linux-X64.tar.xz",
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-      "sha256": "b5ed9675149cc837c282e9b6962c276c9fa62863d5b2f91537b60848552995b7",
-      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/LLVM-23.1.2-Linux-X64.tar.xz.sig",
+      "version": "23.1.3",
+      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/LLVM-23.1.3-Linux-X64.tar.xz",
+      "size": 2016524848,
+      "sha256": "ca9fe385a5d9e2d88132dc0e23a00e9f87f38fa75f67207b5e457d208e71d013",
+      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/LLVM-23.1.3-Linux-X64.tar.xz.sig",
       "license": "Apache-2.0 WITH LLVM-exception",
-      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.2/LICENSE.TXT"
+      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.3/LICENSE.TXT"
     },
     {
       "id": "llvm-linux-arm64",
-      "version": "23.1.2",
-      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/LLVM-23.1.2-Linux-ARM64.tar.xz",
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-      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.2/LLVM-23.1.2-Linux-ARM64.tar.xz.sig",
+      "version": "23.1.3",
+      "url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/LLVM-23.1.3-Linux-ARM64.tar.xz",
+      "size": 1829163444,
+      "sha256": "56d005e339c979a696ed6c244e6472e16f3b1371e48987a07e6145bda7ee0d03",
+      "signature_url": "https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/LLVM-23.1.3-Linux-ARM64.tar.xz.sig",
       "license": "Apache-2.0 WITH LLVM-exception",
-      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.2/LICENSE.TXT"
+      "license_url": "https://github.com/llvm/llvm-project/blob/llvmorg-23.1.3/LICENSE.TXT"
     },
     {
       "id": "musl-source",
@@ -43,21 +43,21 @@
     },
     {
       "id": "llvm-mingw-windows-amd64",
-      "version": "20260922",
-      "url": "https://github.com/mstorsjo/llvm-mingw/releases/download/20260922/llvm-mingw-20260922-ucrt-x86_64.zip",
-      "size": 190725905,
-      "sha256": "e3ad77d117a4bea19a7a3b333341824d79a5a371004a10e25b8504e7b3047666",
+      "version": "20261006",
+      "url": "https://github.com/mstorsjo/llvm-mingw/releases/download/20261006/llvm-mingw-20261006-ucrt-x86_64.zip",
+      "size": 190836485,
+      "sha256": "317492c456aa27ee607a5919f1d2d38dcdc1112516a24d0bf4b00d078f52d17a",
       "license": "Apache-2.0 WITH LLVM-exception",
-      "license_url": "https://github.com/mstorsjo/llvm-mingw/blob/20260922/LICENSE.TXT"
+      "license_url": "https://github.com/mstorsjo/llvm-mingw/blob/20261006/LICENSE.TXT"
     },
     {
       "id": "llvm-mingw-windows-arm64",
-      "version": "20260922",
-      "url": "https://github.com/mstorsjo/llvm-mingw/releases/download/20260922/llvm-mingw-20260922-ucrt-aarch64.zip",
-      "size": 185627547,
-      "sha256": "a317514a7a63badd692032c0c2b8e165f630bbaebbe7a3254348051f43a64949",
+      "version": "20261006",
+      "url": "https://github.com/mstorsjo/llvm-mingw/releases/download/20261006/llvm-mingw-20261006-ucrt-aarch64.zip",
+      "size": 185727081,
+      "sha256": "9a835d5179c9f3a5a783c11a7f14062a249b4765dd11add64a66786864e82ab2",
       "license": "Apache-2.0 WITH LLVM-exception",
-      "license_url": "https://github.com/mstorsjo/llvm-mingw/blob/20260922/LICENSE.TXT"
+      "license_url": "https://github.com/mstorsjo/llvm-mingw/blob/20261006/LICENSE.TXT"
     }
   ]
 }