diff --git a/modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala b/modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala
index 188a328..153c1b4 100644
--- a/modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala
+++ b/modules/core/src/main/scala/de/nowchess/chess/config/JacksonConfig.scala
@@ -8,4 +8,9 @@ import jakarta.inject.Singleton
 @Singleton
 class JacksonConfig extends ObjectMapperCustomizer:
   def customize(mapper: ObjectMapper): Unit =
-    mapper.registerModule(DefaultScalaModule)
+    mapper.registerModule(new DefaultScalaModule() {
+      override def version(): Version =
+        // scalafix:off DisableSyntax.null
+        new Version(2, 21, 1, null, "com.fasterxml.jackson.module", "jackson-module-scala")
+      // scalafix:on DisableSyntax.null
+    })