diff --git a/pom.xml b/pom.xml
index ddb183a..82abe77 100644
--- a/pom.xml
+++ b/pom.xml
@@ -98,7 +98,7 @@
 
         <xtext.version>2.27.0</xtext.version>
         <unruly.version>1.6</unruly.version>
-        <kotlin.version>1.9.23</kotlin.version>
+        <kotlin.version>1.7.21</kotlin.version>
         <jmock.version>2.12.0</jmock.version>
         <jaxb.version>2.3.1</jaxb.version>
         <guava.version>32.0.1-jre</guava.version>