diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 9c2ab74..74557ae 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -27,10 +27,10 @@ jobs:
           token: ${{ secrets.CODECOV_TOKEN }}
           files: ./coverage_report.lcov
 
-  xcode_16_2:
+  xcode_26:
     runs-on: macos-15
     env:
-      DEVELOPER_DIR: /Applications/Xcode_16.2.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_26.0.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -41,10 +41,10 @@ jobs:
       - name: Test
         run: swift test --skip-build
 
-  xcode_15_4:
-    runs-on: macos-14
+  xcode_16_2:
+    runs-on: macos-15
     env:
-      DEVELOPER_DIR: /Applications/Xcode_15.4.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_16.2.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -53,12 +53,12 @@ jobs:
       - name: Build
         run: swift build --build-tests
       - name: Test
-        run: swift test
+        run: swift test --skip-build
 
-  xcode_15_2:
+  xcode_15_4:
     runs-on: macos-14
     env:
-      DEVELOPER_DIR: /Applications/Xcode_15.2.app/Contents/Developer
+      DEVELOPER_DIR: /Applications/Xcode_15.4.app/Contents/Developer
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -108,9 +108,9 @@ jobs:
       - name: Test
         run: swift test --skip-build
 
-  linux_swift_5_9:
+  linux_swift_6_2:
     runs-on: ubuntu-latest
-    container: swift:5.9
+    container: swiftlang/swift:nightly-6.2-noble
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/Package@swift-5.9.swift b/Package@swift-5.10.swift
similarity index 96%
rename from Package@swift-5.9.swift
rename to Package@swift-5.10.swift
index 5bc1558..cdac54f 100644
--- a/Package@swift-5.9.swift
+++ b/Package@swift-5.10.swift
@@ -1,4 +1,4 @@
-// swift-tools-version:5.9
+// swift-tools-version:5.10
 
 import PackageDescription
 
diff --git a/docker-run-tests.sh b/docker-run-tests.sh
index b5bc1e7..16fafbe 100755
--- a/docker-run-tests.sh
+++ b/docker-run-tests.sh
@@ -5,5 +5,5 @@ set -eu
 docker run -it \
   --rm \
   --mount src="$(pwd)",target=/mutex,type=bind \
-  swiftlang/swift:nightly-6.0-jammy \
+  swiftlang/swift:nightly-6.2-noble \
   /usr/bin/swift test --package-path /mutex