diff --git a/repos/spack_repo/builtin/packages/asio/package.py b/repos/spack_repo/builtin/packages/asio/package.py
index ccd83bd7330..cc4cad030b2 100644
--- a/repos/spack_repo/builtin/packages/asio/package.py
+++ b/repos/spack_repo/builtin/packages/asio/package.py
@@ -59,7 +59,7 @@ class Asio(AutotoolsPackage):
         msg="asio v1.22.1 fixed missing includes necessary for gcc v12 and above",
     )
 
-    stds = ("11", "14", "17", "20")
+    stds = ("11", "14", "17", "20", "23")
     variant(
         "cxxstd",
         default="11",