diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index f482297704..f2a7267067 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -61,7 +61,7 @@ jobs:
     - name: Set up Maven
       uses: stCarolas/setup-maven@v4.5
       with:
-        maven-version: 3.8.6
+        maven-version: 3.8.8
     - name: Set up JDK
       uses: actions/setup-java@v3
       with:
diff --git a/.github/workflows/native-images-tests.yml b/.github/workflows/native-images-tests.yml
index 4afc6559e5..5546fc8b6e 100644
--- a/.github/workflows/native-images-tests.yml
+++ b/.github/workflows/native-images-tests.yml
@@ -33,7 +33,7 @@ jobs:
     - name: Set up Maven
       uses: stCarolas/setup-maven@v4.5
       with:
-        maven-version: 3.8.6
+        maven-version: 3.8.8
     - name: Set up JDK
       uses: actions/setup-java@v3
       with:
diff --git a/.github/workflows/scanning.yml b/.github/workflows/scanning.yml
index bcab4688ed..00c0d30482 100644
--- a/.github/workflows/scanning.yml
+++ b/.github/workflows/scanning.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Set up Maven
         uses: stCarolas/setup-maven@v4.5
         with:
-          maven-version: 3.8.6
+          maven-version: 3.8.8
 
       - name: Set up JDK
         uses: actions/setup-java@v3
diff --git a/jenkins/builder/HonoBuilder.dockerfile b/jenkins/builder/HonoBuilder.dockerfile
index 74f0fcdb6b..c35542ced0 100644
--- a/jenkins/builder/HonoBuilder.dockerfile
+++ b/jenkins/builder/HonoBuilder.dockerfile
@@ -16,12 +16,12 @@
 # The resulting image can be used to build Hono from source, including the native executable
 # of the hono-cli artifact.
 
-FROM debian:stable-slim
+FROM debian:bullseye-slim
 
-ARG MANDREL_VERSION=22.3.1.0-Final
+ARG MANDREL_VERSION=22.3.3.1-Final
 # either java11 or java17
 ARG JDK_VERSION=java17
-ARG MVN_VERSION=3.8.6
+ARG MVN_VERSION=3.8.8
 
 ENV GRAALVM_HOME=/graalvm
 ENV MAVEN_HOME=/maven