diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index faf344f..af403ad 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -23,6 +23,13 @@ jobs:
   build:
     name: Build it
     uses: codehaus-plexus/.github/.github/workflows/maven.yml@master
+    with:
+      matrix-include: >
+        [
+          { "os": "ubuntu-latest", "jdk": "26", "distribution": "zulu" },
+          { "os": "ubuntu-latest", "jdk": "27", "distribution": "zulu" },
+          { "os": "ubuntu-latest", "jdk": "28-ea", "distribution": "temurin" }
+        ]
 
 #  deploy:
 #    name: Deploy
diff --git a/pom.xml b/pom.xml
index c0621f3..72e477c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -120,5 +120,16 @@
         </plugins>
       </build>
     </profile>
+    <profile>
+      <!-- palantir-java-format cannot run on JDK 27+: https://github.com/palantir/palantir-java-format/issues/1785 -->
+      <id>jdk27-skip-spotless</id>
+      <activation>
+        <jdk>[27,)</jdk>
+      </activation>
+      <properties>
+        <spotless.check.skip>true</spotless.check.skip>
+        <spotless.apply.skip>true</spotless.apply.skip>
+      </properties>
+    </profile>
   </profiles>
 </project>