diff --git a/build.gradle b/build.gradle
index 25caa8a..8f9bd00 100644
--- a/build.gradle
+++ b/build.gradle
@@ -11,7 +11,7 @@ plugins {
 
 wrapper {
     gradleVersion = libs.versions.gradle.get()
-    distributionType = Wrapper.DistributionType.ALL
+    distributionType = Wrapper.DistributionType.BIN
 }
 
 ext {
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 7f93135..e644113 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 8838ba9..b82aa23 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-8.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/gradlew.bat b/gradlew.bat
index 6689b85..7101f8e 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -43,11 +43,11 @@ set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
 if %ERRORLEVEL% equ 0 goto execute
 
-echo.
-echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -57,11 +57,11 @@ set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
 if exist "%JAVA_EXE%" goto execute
 
-echo.
-echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
-echo.
-echo Please set the JAVA_HOME variable in your environment to match the
-echo location of your Java installation.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
diff --git a/settings.gradle b/settings.gradle
index 51468cf..f88ec5f 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -1,14 +1,14 @@
 dependencyResolutionManagement {
     versionCatalogs {
         libs {
-            version('gradle', '8.4')
+            version('gradle', '8.7')
         }
         testLibs {
-            version('junit', '5.9.2')
+            version('junit', '5.10.3')
             library('junit-jupiter-api', 'org.junit.jupiter', 'junit-jupiter-api').versionRef('junit')
             library('junit-jupiter-params', 'org.junit.jupiter', 'junit-jupiter-params').versionRef('junit')
             library('junit-jupiter-engine', 'org.junit.jupiter', 'junit-jupiter-engine').versionRef('junit')
-            library('junit-jupiter-platform-launcher', 'org.junit.platform', 'junit-platform-launcher').version('1.10.0')
+            library('junit-jupiter-platform-launcher', 'org.junit.platform', 'junit-platform-launcher').version('1.10.1')
             library('junit4', 'junit', 'junit').version('4.13.2')
             library('hamcrest', 'org.hamcrest', 'hamcrest-library').version('2.2')
         }
diff --git a/src/main/java/module-info.java b/src/main/java/module-info.java
index e217eca..cd4ef0b 100644
--- a/src/main/java/module-info.java
+++ b/src/main/java/module-info.java
@@ -1,6 +1,6 @@
 module org.xbib.charset {
     exports org.xbib.charset;
-    requires java.xml;
+    requires java.xml; // for reading ansel mappings
     provides java.nio.charset.spi.CharsetProvider with
             org.xbib.charset.BibliographicCharsetProvider;
 }