diff --git a/build.gradle b/build.gradle
index dafe25e..8db0b3d 100644
--- a/build.gradle
+++ b/build.gradle
@@ -28,7 +28,7 @@ dependencies {
     runtimeOnly 'org.postgresql:postgresql'
 
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
-    testImplementation 'org.testcontainers:postgresql:1.21.3'
+    testImplementation 'org.testcontainers:postgresql:1.21.4'
     testImplementation 'nl.jqno.equalsverifier:equalsverifier:4.2.1'
 }