diff --git a/services/inventory-service/build.gradle.kts b/services/inventory-service/build.gradle.kts
index d0d8175..c1c1de3 100644
--- a/services/inventory-service/build.gradle.kts
+++ b/services/inventory-service/build.gradle.kts
@@ -51,7 +51,7 @@ dependencies {
 	implementation("io.micrometer:micrometer-registry-prometheus")
 
 	// Redisson for distributed locks (auto-configures from spring.data.redis.*)
-	implementation("org.redisson:redisson-spring-boot-starter:3.31.0")
+	implementation("org.redisson:redisson-spring-boot-starter:4.5.0")
 
 	implementation("io.opentelemetry.instrumentation:opentelemetry-spring-boot-starter")
 	implementation("io.opentelemetry.instrumentation:opentelemetry-logback-appender-1.0")