diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6a93c4e6..cae518a2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,7 +7,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        java: [ '11' ]
+        java: [ 'openjdk@1.17' ]
     steps:
       - uses: actions/checkout@v4.1.1
         with:
diff --git a/.github/workflows/release-nightly.yml b/.github/workflows/release-nightly.yml
index ef8c55c9..31e6dd86 100644
--- a/.github/workflows/release-nightly.yml
+++ b/.github/workflows/release-nightly.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        java: [ 'openjdk@1.11' ]
+        java: [ 'openjdk@1.17' ]
     steps:
       - uses: actions/checkout@v4.1.1
         with:
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 79e1306f..a18b6fc8 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: true
       matrix:
-        java: [ 'openjdk@1.11' ]
+        java: [ 'openjdk@1.17' ]
     steps:
       - uses: actions/checkout@v4.1.1
         with:
diff --git a/docker/build-images.sh b/docker/build-images.sh
index 2494336f..05a76645 100755
--- a/docker/build-images.sh
+++ b/docker/build-images.sh
@@ -32,7 +32,7 @@ cd "$(dirname "$0")"
 
 trap "{ docker buildx rm sharry-builder; }" EXIT
 
-platforms="linux/amd64,linux/aarch64,linux/arm/v7"
+platforms="linux/amd64,linux/arm64"
 docker buildx create --name sharry-builder --use
 
 if [[ $version == *SNAPSHOT* ]]; then
diff --git a/docker/sharry.dockerfile b/docker/sharry.dockerfile
index 3cb9a4dd..7cf21ebf 100644
--- a/docker/sharry.dockerfile
+++ b/docker/sharry.dockerfile
@@ -6,9 +6,7 @@ ARG version=
 ARG sharry_url=
 ARG TARGETPLATFORM
 
-RUN JDKPKG="openjdk11"; \
-    if [ "$TARGETPLATFORM" = "linux/arm/v7" ]; then JDKPKG="openjdk8"; fi; \
-    apk -U add --no-cache $JDKPKG tzdata unzip curl bash
+RUN apk -U add --no-cache openjdk17 tzdata unzip curl bash
 
 WORKDIR /opt
 
diff --git a/modules/microsite/docs/doc/install.md b/modules/microsite/docs/doc/install.md
index 72ab99e1..e9bf1d4f 100644
--- a/modules/microsite/docs/doc/install.md
+++ b/modules/microsite/docs/doc/install.md
@@ -30,9 +30,9 @@ other options.
 It is enough to install the JRE. The JDK is required, if you want to
 build sharry from source.
 
-Sharry has been tested with Java version 1.8 (or sometimes referred
-to as JRE 8 and JDK 8, respectively). The pre-build packages are also
-build using JDK 8. But a later version of Java should work as well.
+Sharry has been tested with Java version 17. The pre-build packages
+are also build using JDK 17. But a later version of Java should work
+as well.
 
 
 ## Database