diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 8aa2e060..e067cd09 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -78,9 +78,17 @@ jobs:
             wasi-swift-sdk-id: swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a_wasm
             wasi-swift-sdk-checksum: "b64dfad9e1c9ccdf06f35cf9b1a00317e000df0c0de0b3eb9f49d6db0fcba4d9"
             test-args: "--sanitize address --traits ComponentModel,WasmDebuggingSupport"
-          # Swift 6.2.4
+          # Swift 6.2.4 (Disabled due to hanging build).
+          # - os: macos-26
+          #   xcode: Xcode_26.3
+          #   development-toolchain-tag: swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a
+          #   wasi-swift-sdk-download: "https://download.swift.org/development/wasm-sdk/swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a/swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a_wasm.artifactbundle.tar.gz"
+          #   wasi-swift-sdk-id: swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a_wasm
+          #   wasi-swift-sdk-checksum: "b64dfad9e1c9ccdf06f35cf9b1a00317e000df0c0de0b3eb9f49d6db0fcba4d9"
+          #   test-args: "--sanitize address --traits ComponentModel,WasmDebuggingSupport"
+          # Swift 6.3.2
           - os: macos-26
-            xcode: Xcode_26.3
+            xcode: Xcode_26.5
             development-toolchain-tag: swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a
             wasi-swift-sdk-download: "https://download.swift.org/development/wasm-sdk/swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a/swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a_wasm.artifactbundle.tar.gz"
             wasi-swift-sdk-id: swift-DEVELOPMENT-SNAPSHOT-2025-10-02-a_wasm