diff --git a/.github/workflows/maven.yaml b/.github/workflows/maven.yaml
index f88022b9b..79ca1cee6 100644
--- a/.github/workflows/maven.yaml
+++ b/.github/workflows/maven.yaml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        java: [ '11', '17' ]
+        java: [ '17' ]
     name: Java ${{ matrix.java }} compile
     steps:
     - uses: actions/checkout@v2
diff --git a/.mvn/extensions.xml b/.mvn/extensions.xml
index d68f22eb5..2407b52b5 100644
--- a/.mvn/extensions.xml
+++ b/.mvn/extensions.xml
@@ -2,6 +2,6 @@
   <extension>
     <groupId>org.eclipse.tycho.extras</groupId>
     <artifactId>tycho-pomless</artifactId>
-    <version>2.5.0</version>
+    <version>3.0.4</version>
   </extension>
 </extensions>
\ No newline at end of file
diff --git a/releng/org.eclipse.nebula.nebula-parent/pom.xml b/releng/org.eclipse.nebula.nebula-parent/pom.xml
index 553c41b31..f9a140113 100644
--- a/releng/org.eclipse.nebula.nebula-parent/pom.xml
+++ b/releng/org.eclipse.nebula.nebula-parent/pom.xml
@@ -22,7 +22,7 @@ Contributors:
 
 	<properties>
 
-		<tycho-version>2.6.0</tycho-version>
+		<tycho-version>3.0.4</tycho-version>
 		<tycho-extras-version>${tycho-version}</tycho-extras-version>
 		<mockito-version>2.8.9</mockito-version>
 		<findbugs-version>2.3.2</findbugs-version>