diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 17dbffd..ac49a77 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -15,7 +15,7 @@ jobs:
 
     strategy:
       matrix:
-        java: [ '1.8', '11', '17' ]
+        java: [ '11', '17' ]
 
     name: Java ${{ matrix.java }} NoCommons
     steps:
diff --git a/pom.xml b/pom.xml
index 32ac5a1..9f8acaf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -242,8 +242,8 @@
 
   <properties>
     <!-- Dependency version -->
-    <maven.compiler.source>1.8</maven.compiler.source>
-    <maven.compiler.target>1.8</maven.compiler.target>
+    <maven.compiler.source>11</maven.compiler.source>
+    <maven.compiler.target>11</maven.compiler.target>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
   </properties>
 
diff --git a/src/test/java/no/bekk/bekkopen/mail/MailValidatorTest.java b/src/test/java/no/bekk/bekkopen/mail/MailValidatorTest.java
index c54c6e5..89dba42 100644
--- a/src/test/java/no/bekk/bekkopen/mail/MailValidatorTest.java
+++ b/src/test/java/no/bekk/bekkopen/mail/MailValidatorTest.java
@@ -4,7 +4,6 @@
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
 
-import java.util.Arrays;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
@@ -22,7 +21,7 @@
 public class MailValidatorTest {
     private static final Poststed HAMAR = new Poststed("Hamar");
 
-    private static final List<PostInfo> postInfo = Arrays.asList(
+    private static final List<PostInfo> postInfo = List.of(
         new PostInfo(
             new Postnummer("4633"),
             new Poststed("KRISTIANSAND S"),