diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index d570fbb..637fe90 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -4,7 +4,9 @@ updates:
     directory: "/"
     schedule:
       interval: weekly
+      day: sunday
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
       interval: weekly
+      day: sunday
diff --git a/.github/workflows/automerge.yml b/.github/workflows/automerge.yml
index 7d8acd7..b9b53a3 100644
--- a/.github/workflows/automerge.yml
+++ b/.github/workflows/automerge.yml
@@ -11,7 +11,7 @@ jobs:
     if: ${{ github.actor == 'dependabot[bot]' }}
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           show-progress: ''
       - name: Merge PR
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 079d6d0..b2cbca2 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -24,14 +24,13 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-14]
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up JDK 21
-      uses: actions/setup-java@v4
+    - uses: actions/checkout@v5
+    - name: Set up JDK 25
+      uses: actions/setup-java@v5
       with:
-        java-version: '21'
-        distribution: 'temurin'
-    - name: Build with Gradle
-      uses: gradle/actions/setup-gradle@v4
+        java-version: '25'
+        distribution: 'corretto'
+    - uses: gradle/actions/setup-gradle@v4
     - run: ./gradlew jlinkZip
     - name: Upload a Build Artifact
       uses: actions/upload-artifact@v4
@@ -39,11 +38,3 @@ jobs:
         name: javafxreproducer-${{ matrix.os }}
         path: build/distributions
         compression-level: 0
-  keepalive:
-    name: Keepalive
-    runs-on: ubuntu-latest
-    permissions:
-      actions: write
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gautamkrishnar/keepalive-workflow@v2
diff --git a/build.gradle b/build.gradle
index 86aa2d8..6dc0852 100644
--- a/build.gradle
+++ b/build.gradle
@@ -3,7 +3,7 @@ plugins {
     id 'application'
     id 'org.javamodularity.moduleplugin' version '1.8.15'
     id 'org.openjfx.javafxplugin' version '0.1.0'
-    id 'org.beryx.jlink' version '3.1.3'
+    id 'org.beryx.jlink' version '3.1.4-rc'
 }
 
 group 'org.jabreftest.test'
@@ -17,8 +17,12 @@ ext {
     junitVersion = '5.13.4'
 }
 
-sourceCompatibility = '21'
-targetCompatibility = '21'
+
+java {
+  toolchain {
+    languageVersion.set(JavaLanguageVersion.of(25))
+  }
+}
 
 tasks.withType(JavaCompile).configureEach {
     options.encoding = 'UTF-8'
@@ -30,7 +34,7 @@ application {
 }
 
 javafx {
-    version = '23'
+    version = '25'
     modules = ['javafx.controls', 'javafx.fxml']
 }
 
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index d64cd49..8bdaf60 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index a80b22c..2e11132 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.1.0-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew b/gradlew
index 1aa94a4..ef07e01 100755
--- a/gradlew
+++ b/gradlew
@@ -1,7 +1,7 @@
 #!/bin/sh
 
 #
-# Copyright © 2015-2021 the original authors.
+# Copyright © 2015 the original authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -84,7 +86,7 @@ done
 # shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
 # Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
-APP_HOME=$( cd "${APP_HOME:-./}" > /dev/null && pwd -P ) || exit
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -112,7 +114,7 @@ case "$( uname )" in                #(
   NONSTOP* )        nonstop=true ;;
 esac
 
-CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+CLASSPATH="\\\"\\\""
 
 
 # Determine the Java command to use to start the JVM.
@@ -203,7 +205,7 @@ fi
 DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 
 # Collect all arguments for the java command:
-#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
 #     and any embedded shellness will be escaped.
 #   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
 #     treated as '${Hostname}' itself on the command line.
@@ -211,7 +213,7 @@ DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
         -classpath "$CLASSPATH" \
-        org.gradle.wrapper.GradleWrapperMain \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
         "$@"
 
 # Stop when "xargs" is not available.
diff --git a/gradlew.bat b/gradlew.bat
index 25da30d..db3a6ac 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,6 +13,8 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
 @if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
@@ -68,11 +70,11 @@ goto fail
 :execute
 @rem Setup the command line
 
-set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+set CLASSPATH=
 
 
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
 
 :end
 @rem End local scope for the variables with windows NT shell