diff --git a/films-demo/online-listings-api/pom.xml b/films-demo/online-listings-api/pom.xml
index 5c428a7..efea637 100644
--- a/films-demo/online-listings-api/pom.xml
+++ b/films-demo/online-listings-api/pom.xml
@@ -21,7 +21,7 @@
         <dependency>
             <groupId>org.jetbrains.kotlinx</groupId>
             <artifactId>kotlinx-serialization-core-jvm</artifactId>
-            <version>1.7.3</version>
+            <version>1.8.0</version>
         </dependency>
         <dependency>
             <groupId>com.squareup.wire</groupId>