diff --git a/toolchain_clang.yaml b/toolchain_clang.yaml
index 1c310da..7673bec 100644
--- a/toolchain_clang.yaml
+++ b/toolchain_clang.yaml
@@ -481,7 +481,8 @@ infos:
   - name: Clang 23
     released: August 25, 2026
     refs:
-      - "https://clang.llvm.org/docs/ReleaseNotes.html"
+      - "https://releases.llvm.org/23.1.0/tools/clang/docs/ReleaseNotes.html"
+      - "https://github.com/llvm/llvm-project/releases/tag/llvmorg-23.1.0"
 
   - name: Clang 24
     released: TBD