diff --git a/.github/workflows/bld.yml b/.github/workflows/bld.yml
index 3e3dad8..9aebdef 100644
--- a/.github/workflows/bld.yml
+++ b/.github/workflows/bld.yml
@@ -12,12 +12,12 @@ jobs:
 
     steps:
       - name: Checkout source repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up JDK ${{ matrix.java-version }}
-        uses: actions/setup-java@v3
+        uses: actions/setup-java@v4
         with:
           distribution: "temurin"
           java-version: ${{ matrix.java-version }}
diff --git a/.idea/libraries/bld.xml b/.idea/libraries/bld.xml
index 0b615c1..a2969be 100644
--- a/.idea/libraries/bld.xml
+++ b/.idea/libraries/bld.xml
@@ -2,12 +2,12 @@
   <library name="bld">
     <CLASSES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-1.9.0.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.9.1.jar!/" />
     </CLASSES>
     <JAVADOC />
     <SOURCES>
       <root url="file://$PROJECT_DIR$/lib/bld" />
-      <root url="jar://$USER_HOME$/.bld/dist/bld-1.9.0-sources.jar!/" />
+      <root url="jar://$USER_HOME$/.bld/dist/bld-1.9.1-sources.jar!/" />
     </SOURCES>
     <excluded>
       <root url="jar://$PROJECT_DIR$/lib/bld/bld-wrapper.jar!/" />
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 9e8368e..d136e4d 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,7 +9,7 @@
     ],
     "java.configuration.updateBuildConfiguration": "automatic",
     "java.project.referencedLibraries": [
-        "${HOME}/.bld/dist/bld-1.9.0.jar",
+        "${HOME}/.bld/dist/bld-1.9.1.jar",
         "lib/**/*.jar"
     ]
 }
diff --git a/lib/bld/bld-wrapper.jar b/lib/bld/bld-wrapper.jar
index e815177..e75c126 100644
Binary files a/lib/bld/bld-wrapper.jar and b/lib/bld/bld-wrapper.jar differ
diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index 5688f1f..4b63a16 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -1,8 +1,8 @@
 bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
-bld.extensions=com.uwyn.rife2:bld-kotlin:0.9.3
 bld.extension-detekt=com.uwyn.rife2:bld-detekt:0.9.2
+bld.extensions=com.uwyn.rife2:bld-kotlin:0.9.4
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=
 bld.sourceDirectories=
-bld.version=1.9.0
+bld.version=1.9.1
diff --git a/src/bld/java/com/example/ExampleBuild.java b/src/bld/java/com/example/ExampleBuild.java
index 26ca3a8..e35d537 100644
--- a/src/bld/java/com/example/ExampleBuild.java
+++ b/src/bld/java/com/example/ExampleBuild.java
@@ -30,7 +30,7 @@ public class ExampleBuild extends Project {
         autoDownloadPurge = true;
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL, RIFE2_RELEASES);
 
-        final var kotlin = version(1, 9, 23);
+        final var kotlin = version(1, 9, 24);
         scope(compile)
                 .include(dependency("org.jetbrains.kotlin", "kotlin-stdlib", kotlin));
         scope(test)