diff --git a/.github/workflows/ci-conan.yml b/.github/workflows/ci-conan.yml
index abf0bd27..03768356 100644
--- a/.github/workflows/ci-conan.yml
+++ b/.github/workflows/ci-conan.yml
@@ -144,7 +144,7 @@ jobs:
             }
           - {
               name: "Apple Clang 15",
-              os: macos-14,
+              os: macos-13,
               compiler:
                 {
                   type: APPLE_CLANG,