diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 440262b..4d1e9ab 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -64,6 +64,7 @@ jobs:
           ARCH: arm64
           OS: macos
           EXECUTION_TYPE: ${{ matrix.execution_type }}
+          APPLE_SDK_VERSION_OVERRIDE: 26.5
         run: python3 infra/test-all.py --package=${{ matrix.test_package }}
 
   linux-test-matrix:
diff --git a/MODULE.bazel b/MODULE.bazel
index c35488b..b83de0b 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -128,7 +128,7 @@ use_repo(maven, "maven")
 
 bazel_dep(name = "rules_kotlin", version = "2.3.20")
 bazel_dep(name = "rules_perl", version = "1.1.1")
-bazel_dep(name = "rules_swift", version = "3.6.1")
+bazel_dep(name = "rules_swift", version = "4.0.0-rc2")
 bazel_dep(name = "rules_nodejs", version = "6.7.4")
 bazel_dep(name = "aspect_rules_ts", version = "3.8.10")
 bazel_dep(name = "aspect_bazel_lib", version = "2.22.5")
diff --git a/README.md b/README.md
index 7042036..6c5ef21 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,7 @@ locally before attempting remote execution.
 
   ```sh
   # --config=clang isn't required on macOS
-  bazel build --config=clang //swift:tests
+  bazel build --config=clang //swift/...
   ```
 
 ### Testing locally
@@ -100,7 +100,7 @@ locally before attempting remote execution.
 
   ```sh
   # --config=clang isn't required on macOS
-  bazel test --config=clang //swift:tests
+  bazel test --config=clang //swift/...
   ```
 
 ## Remote execution
diff --git a/platform/macos_arm64/BUILD b/platform/macos_arm64/BUILD
index 3888f67..c4265e4 100644
--- a/platform/macos_arm64/BUILD
+++ b/platform/macos_arm64/BUILD
@@ -49,4 +49,3 @@ available_xcodes(
         ":version26_5_0_17F42",
     ],
 )
-
diff --git a/swift/BUILD b/swift/BUILD
index f728cc3..8afe013 100644
--- a/swift/BUILD
+++ b/swift/BUILD
@@ -5,10 +5,9 @@ swift_test(
     size = "small",
     srcs = [
         "example.swift",
-        "main.swift",
+        #"main.swift",
     ],
     tags = [
-        "manual",
-        "no-ci",  # Broken toolchain setup
+        "no-linux-ci",  # No linux swift toolchains currently defined.
     ],
 )