diff --git a/ganttproject/build.gradle b/ganttproject/build.gradle
index 65fb06c766..b452cb49b5 100644
--- a/ganttproject/build.gradle
+++ b/ganttproject/build.gradle
@@ -49,7 +49,7 @@ dependencies {
     jooqGenerator 'org.jooq:jooq-codegen-gradle:3.19.13'
     jooqGenerator 'org.jooq:jooq-meta-extensions:3.19.13'
 
-    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.2'
+    implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.7.3'
     implementation('net.harawata:appdirs:1.2.2') {
         exclude group: 'net.java.dev.jna', module: 'jna'
     }