diff --git a/.github/workflows/soundness.yml b/.github/workflows/soundness.yml
index 73d7e432..c1b7b59a 100644
--- a/.github/workflows/soundness.yml
+++ b/.github/workflows/soundness.yml
@@ -38,7 +38,7 @@ on:
       docs_check_macos_version:
         type: string
         description: "macOS version for the macOS docs check job."
-        default: "sequoia"
+        default: "tahoe"
       docs_check_macos_arch:
         type: string
         description: "macOS arch for the macOS docs check job."
diff --git a/.github/workflows/swift_package_test.yml b/.github/workflows/swift_package_test.yml
index e9076fbb..3407e6cd 100644
--- a/.github/workflows/swift_package_test.yml
+++ b/.github/workflows/swift_package_test.yml
@@ -17,7 +17,7 @@ on:
       macos_versions:
         type: string
         description: "macOS version list (JSON)"
-        default: "[\"sequoia\"]"
+        default: "[\"tahoe\"]"
       macos_archs:
         type: string
         description: "macOS arch list (JSON)"