diff --git a/.github/workflows/maven.yml b/.github/workflows/maven.yml
index 0413278c..e4fd342c 100644
--- a/.github/workflows/maven.yml
+++ b/.github/workflows/maven.yml
@@ -20,26 +20,3 @@ jobs:
           java-version: 17
       - name: Build with Maven
         run: ./mvnw --no-transfer-progress clean verify
-
-  sonar:
-    name: sonar analyse
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - run: sudo apt-get install -y gpsbabel
-      - uses: actions/checkout@v1
-      - uses: actions/setup-java@v1
-        with:
-          java-version: 17
-      - name: Run SonarCloud analyse
-        run: >
-          ./mvnw --batch-mode --no-transfer-progress clean
-          org.jacoco:jacoco-maven-plugin:prepare-agent verify
-          org.sonarsource.scanner.maven:sonar-maven-plugin:sonar
-          -Dsonar.host.url=https://sonarcloud.io
-          -Dsonar.organization=michael-simons-github
-          -Dsonar.projectKey=eu.michael-simons:biking2
-          -Dsonar.branch.name=${GITHUB_REF##*/}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
diff --git a/README.md b/README.md
index 28269918..66b8624c 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
 # biking2
 
-[![Build Status](https://github.com/michael-simons/biking2/workflows/build/badge.svg)](https://github.com/michael-simons/biking2/actions) [![Test coverage](https://sonarcloud.io/api/project_badges/measure?project=eu.michael-simons%3Abiking2&metric=coverage)](https://sonarcloud.io/dashboard?id=eu.michael-simons%3Abiking2) [![Quality Gate](https://sonarcloud.io/api/project_badges/measure?project=eu.michael-simons%3Abiking2&metric=alert_status)](https://sonarcloud.io/dashboard?id=eu.michael-simons%3Abiking2)
-
-*NOTE:* The successor to this project is [biking3][9], which is what my [instance][1] is running these days.
+*NOTE:* The successor to this project is [biking3][9], which is what my [instance][1] is running these days. I might update dependencies here some time, but I am not doing any further development in here.
 
 ## Abstract
 
@@ -26,7 +24,7 @@ Per default, biking2 looks at `/opt/local/bin/gpsbabel` for the GPSBabel binary.
 
 GPSBabel is available for all major operating systems, including windows. So please check if it's available on your platform if biking2 doesn't compile for you.
 
-Also you should use the provided `mvnw` respectively `mvnw.cmd` script for building.
+Also, you should use the provided `mvnw` respectively `mvnw.cmd` script for building.
 If not, you need to export the following Java opts:
 
     --add-opens java.base/sun.nio.ch=ALL-UNNAMED --add-opens java.base/java.io=ALL-UNNAMED --add-opens java.base/java.lang=ALL-UNNAMED --add-exports java.base/sun.nio.ch=ALL-UNNAMED
diff --git a/pom.xml b/pom.xml
index d01cd175..3ae72ca7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,13 +5,13 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>3.2.0</version>
+    <version>3.3.5</version>
     <relativePath />
   </parent>
 
   <groupId>eu.michael-simons</groupId>
   <artifactId>biking2</artifactId>
-  <version>3.4.10-SNAPSHOT</version>
+  <version>3.5.2-SNAPSHOT</version>
 
   <name>biking2</name>
   <url>https://biking.michael-simons.eu</url>
@@ -45,7 +45,6 @@
     <maven.build.timestamp.format>yyyy-MM-dd HH:mm</maven.build.timestamp.format>
     <build-date>${maven.build.timestamp}</build-date>
 
-    <activemq.version>6.0.0</activemq.version>
     <asciidoctor-maven-plugin.version>2.1.0</asciidoctor-maven-plugin.version>
     <bootstrap.version>3.1.1</bootstrap.version>
     <checkstyle.version>8.42</checkstyle.version>
@@ -66,7 +65,7 @@
     <momentjs.version>2.10.6</momentjs.version>
     <sockjs-client.version>1.0.2</sockjs-client.version>
     <stomp-websocket.version>2.3.3</stomp-websocket.version>
-    <wro4j-spring-boot-starter.version>0.12.2</wro4j-spring-boot-starter.version>
+    <wro4j-spring-boot-starter.version>0.15.1</wro4j-spring-boot-starter.version>
 
     <start-class>ac.simons.biking2.Application</start-class>