diff --git a/lib/bld/bld-wrapper.properties b/lib/bld/bld-wrapper.properties
index d4519f0..c23d7bb 100644
--- a/lib/bld/bld-wrapper.properties
+++ b/lib/bld/bld-wrapper.properties
@@ -2,7 +2,7 @@ bld.downloadExtensionJavadoc=false
 bld.downloadExtensionSources=true
 bld.extension-jacoco=com.uwyn.rife2:bld-jacoco-report:0.9.5
 bld.extensions=com.uwyn.rife2:bld-generated-version:0.9.6-SNAPSHOT
-bld.extensions-kotlin=com.uwyn.rife2:bld-kotlin:0.9.3
+bld.extensions-kotlin=com.uwyn.rife2:bld-kotlin:0.9.4
 bld.extensions-detekt=com.uwyn.rife2:bld-detekt:0.9.4-SNAPSHOT
 bld.repositories=MAVEN_LOCAL,MAVEN_CENTRAL,RIFE2_SNAPSHOTS,RIFE2_RELEASES
 bld.downloadLocation=