diff --git a/core/build.gradle.kts b/core/build.gradle.kts
index b3a7df113..97345bc0c 100644
--- a/core/build.gradle.kts
+++ b/core/build.gradle.kts
@@ -57,7 +57,7 @@ dependencies {
 
   testFixturesApi("dev.forst:ktor-api-key:2.2.4")
 
-  testFixturesApi("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")
+  testFixturesApi("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
 }
 
 testing {
diff --git a/json-schema/build.gradle.kts b/json-schema/build.gradle.kts
index d370ce449..6deb2ea1a 100644
--- a/json-schema/build.gradle.kts
+++ b/json-schema/build.gradle.kts
@@ -24,7 +24,7 @@ dependencies {
   api(projects.kompendiumEnrichment)
 
   implementation("org.jetbrains.kotlin:kotlin-reflect:1.9.22")
-  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")
+  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
 
   // Formatting
   detektPlugins("io.gitlab.arturbosch.detekt:detekt-formatting:$detektVersion")
diff --git a/oas/build.gradle.kts b/oas/build.gradle.kts
index 2ac8cfa6f..89e1c8d0e 100644
--- a/oas/build.gradle.kts
+++ b/oas/build.gradle.kts
@@ -22,7 +22,7 @@ dependencies {
 
   api(projects.kompendiumJsonSchema)
   api(projects.kompendiumEnrichment)
-  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")
+  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
 
   // Formatting
   detektPlugins("io.gitlab.arturbosch.detekt:detekt-formatting:$detektVersion")
diff --git a/playground/build.gradle.kts b/playground/build.gradle.kts
index 3ea7452f8..5d201b9c7 100644
--- a/playground/build.gradle.kts
+++ b/playground/build.gradle.kts
@@ -43,7 +43,7 @@ dependencies {
   // YAML
   implementation("com.charleskorn.kaml:kaml:0.57.0")
 
-  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")
+  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
   implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.5.0")
 
   implementation("joda-time:joda-time:2.12.7")
diff --git a/protobuf-java-converter/build.gradle.kts b/protobuf-java-converter/build.gradle.kts
index fc775099e..1ba654c9c 100644
--- a/protobuf-java-converter/build.gradle.kts
+++ b/protobuf-java-converter/build.gradle.kts
@@ -24,7 +24,7 @@ dependencies {
   implementation(projects.kompendiumJsonSchema)
   implementation("com.google.protobuf:protobuf-java:3.25.3")
   implementation("org.jetbrains.kotlin:kotlin-reflect:1.9.22")
-  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.2")
+  implementation("org.jetbrains.kotlinx:kotlinx-serialization-json:1.6.3")
 
   // Formatting
   detektPlugins("io.gitlab.arturbosch.detekt:detekt-formatting:$detektVersion")