diff --git a/backend/build.gradle.kts b/backend/build.gradle.kts
index 09906413..38d19da1 100644
--- a/backend/build.gradle.kts
+++ b/backend/build.gradle.kts
@@ -72,7 +72,7 @@ dependencies {
         exclude(group = "org.junit.vintage", module = "junit-vintage-engine")
     }
     testImplementation("io.kotest:kotest-runner-junit5:5.9.1")
-    testImplementation("io.kotest:kotest-assertions-core:5.9.1")
+    testImplementation("io.kotest:kotest-assertions-core:6.0.4")
     testImplementation("io.kotest.extensions:kotest-extensions-spring:1.3.0")
     // Testcontainers to provide Postgres DB (https://testcontainers.org/)
     testImplementation("org.testcontainers:testcontainers:1.21.3")