diff --git a/build.gradle b/build.gradle
index e510fb1..9be5345 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,11 +1,8 @@
 
 plugins {
-    id "checkstyle"
-    id "pmd"
     id 'maven-publish'
     id 'signing'
     id "io.github.gradle-nexus.publish-plugin" version "2.0.0-rc-1"
-    //id "com.github.spotbugs" version "6.0.0-beta.3"
     id "org.cyclonedx.bom" version "1.7.4"
     id "org.xbib.gradle.plugin.asciidoctor" version "3.0.0"
 }
@@ -31,14 +28,10 @@ ext {
 }
 
 subprojects {
-    //apply from: rootProject.file('gradle/ide/idea.gradle')
     apply from: rootProject.file('gradle/repositories/maven.gradle')
     apply from: rootProject.file('gradle/compile/java.gradle')
     apply from: rootProject.file('gradle/test/junit5.gradle')
     apply from: rootProject.file('gradle/publish/maven.gradle')
-    apply from: rootProject.file('gradle/quality/checkstyle.gradle')
-    apply from: rootProject.file('gradle/quality/pmd.gradle')
-    //apply from: rootProject.file('gradle/quality/spotbugs.gradle')
 }
 apply from: rootProject.file('gradle/publish/sonatype.gradle')
 apply from: rootProject.file('gradle/publish/forgejo.gradle')
diff --git a/cql-common/build.gradle b/cql-common/build.gradle
index 627831b..eea8de8 100644
--- a/cql-common/build.gradle
+++ b/cql-common/build.gradle
@@ -1,6 +1,6 @@
 plugins {
-    id 'org.xbib.gradle.plugin.jflex' version '3.0.0'
-    id 'org.xbib.gradle.plugin.jacc' version '3.0.0'
+    id 'org.xbib.gradle.plugin.jflex' version '3.1.0'
+    id 'org.xbib.gradle.plugin.jacc' version '3.1.0'
 }
 
 sourceSets {
diff --git a/gradle.properties b/gradle.properties
index 5992804..e50886d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,5 +1,3 @@
 group = org.xbib
 name = cql
 version = 5.1.1
-
-org.gradle.warning.mode = ALL
diff --git a/settings.gradle b/settings.gradle
index 8504351..e534e6f 100644
--- a/settings.gradle
+++ b/settings.gradle
@@ -16,7 +16,7 @@ dependencyResolutionManagement {
     versionCatalogs {
         libs {
             version('gradle', '8.7')
-            version('datastructures', '5.0.6')
+            version('datastructures', '5.2.0')
             library('datastructures-json', 'org.xbib', 'datastructures-json-tiny').versionRef('datastructures')
         }
         testLibs {