diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c2b0d9b8..fd6e39ac 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -32,19 +32,19 @@ jobs:
     strategy:
       matrix:
         os: [ 'ubuntu-latest' ]
-        java: [ '11', '17', '21', '25', '26' ]
+        java: [ '11', '17', '21', '25', '27' ]
         # macOS and Windows runners are the slowest and scarcest in CI, so only
-        # smoke-test the minimum (11) and maximum (26) supported JDKs on them.
+        # smoke-test the minimum (11) and maximum (27) supported JDKs on them.
         # Ubuntu keeps the full JDK matrix above.
         include:
           - os: 'macos-latest'
             java: '11'
           - os: 'macos-latest'
-            java: '26'
+            java: '27'
           - os: 'windows-latest'
             java: '11'
           - os: 'windows-latest'
-            java: '26'
+            java: '27'
       fail-fast: false
     steps:
       - uses: actions/checkout@v7