diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index 422b9cc..d5d3f40 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -1,6 +1,6 @@
 name: bld-ci
 
-on: [push, pull_request, workflow_dispatch]
+on: [ push, pull_request, workflow_dispatch ]
 
 jobs:
   build-bld-project:
@@ -8,7 +8,7 @@ jobs:
 
     strategy:
       matrix:
-        java-version: [17, 21, 22]
+        java-version: [ 17, 20 ]
 
     steps:
       - name: Checkout source repository
@@ -19,7 +19,7 @@ jobs:
       - name: Set up JDK ${{ matrix.java-version }}
         uses: actions/setup-java@v3
         with:
-          distribution: "zulu"
+          distribution: 'zulu'
           java-version: ${{ matrix.java-version }}
 
       - name: Grant execute permission for bld
diff --git a/examples/lib/bld/bld-wrapper.jar b/examples/lib/bld/bld-wrapper.jar
index 82762f1..15c39db 100644
Binary files a/examples/lib/bld/bld-wrapper.jar and b/examples/lib/bld/bld-wrapper.jar differ
diff --git a/examples/lib/bld/bld-wrapper.properties b/examples/lib/bld/bld-wrapper.properties
index 5688f1f..a1c7c9d 100644
--- a/examples/lib/bld/bld-wrapper.properties
+++ b/examples/lib/bld/bld-wrapper.properties
@@ -1,6 +1,6 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
-bld.extensions=com.uwyn.rife2:bld-kotlin:0.9.3
+bld.extensions=com.uwyn.rife2:bld-kotlin:0.9.1
 bld.extension-detekt=com.uwyn.rife2:bld-detekt:0.9.2
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=
diff --git a/examples/src/bld/java/com/example/ExampleBuild.java b/examples/src/bld/java/com/example/ExampleBuild.java
index 96c33ff..d44adf5 100644
--- a/examples/src/bld/java/com/example/ExampleBuild.java
+++ b/examples/src/bld/java/com/example/ExampleBuild.java
@@ -31,7 +31,7 @@ public class ExampleBuild extends Project {
 
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL, RIFE2_RELEASES);
 
-        final var kotlin = version(1, 9, 23);
+        final var kotlin = version(1, 9, 22);
         scope(compile)
                 .include(dependency("org.jetbrains.kotlin", "kotlin-stdlib", kotlin));
         scope(test)
diff --git a/lib/bld/bld-wrapper.jar b/lib/bld/bld-wrapper.jar
index 82762f1..15c39db 100644
Binary files a/lib/bld/bld-wrapper.jar and b/lib/bld/bld-wrapper.jar differ