diff --git a/build.gradle b/build.gradle
index 5389f617..91115652 100644
--- a/build.gradle
+++ b/build.gradle
@@ -44,7 +44,7 @@ dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-amqp'
     implementation 'org.springframework:spring-context-support'
     implementation 'org.springframework.boot:spring-boot-starter-security'
-    implementation 'io.vertx:vertx-pg-client:3.9.2'
+    implementation 'io.vertx:vertx-pg-client:4.0.3'
     implementation 'log4j:log4j:1.2.17'
     implementation 'com.google.guava:guava:29.0-jre'
     implementation 'org.springframework.boot:spring-boot-starter-validation'