diff --git a/kotlin-web-spring-boot-3-auth/build.gradle.kts b/kotlin-web-spring-boot-3-auth/build.gradle.kts
index d0286f3..37bd52e 100644
--- a/kotlin-web-spring-boot-3-auth/build.gradle.kts
+++ b/kotlin-web-spring-boot-3-auth/build.gradle.kts
@@ -31,7 +31,7 @@ dependencies {
     developmentOnly("org.springframework.boot:spring-boot-devtools:3.2.4")
     runtimeOnly("org.postgresql:postgresql:42.7.3")
     testImplementation("org.springframework.boot:spring-boot-starter-test:3.2.4")
-    testImplementation("org.springframework.security:spring-security-test:6.2.3")
+    testImplementation("org.springframework.security:spring-security-test:6.5.5")
     testImplementation("org.mockito.kotlin:mockito-kotlin:5.3.1")
 }
 
diff --git a/kotlin-web-spring-boot-3/build.gradle.kts b/kotlin-web-spring-boot-3/build.gradle.kts
index 531aa8f..25be273 100644
--- a/kotlin-web-spring-boot-3/build.gradle.kts
+++ b/kotlin-web-spring-boot-3/build.gradle.kts
@@ -41,7 +41,7 @@ dependencies {
     developmentOnly("org.springframework.boot:spring-boot-devtools:3.2.4")
     runtimeOnly("org.postgresql:postgresql:42.7.3")
     testImplementation("org.springframework.boot:spring-boot-starter-test:3.2.4")
-    testImplementation("org.springframework.security:spring-security-test:6.2.3")
+    testImplementation("org.springframework.security:spring-security-test:6.5.5")
     testImplementation("org.mockito.kotlin:mockito-kotlin:5.3.1")
 }
 
diff --git a/kotlin-webmvc-spring-boot-3/build.gradle.kts b/kotlin-webmvc-spring-boot-3/build.gradle.kts
index ed107d4..4e9f1bb 100644
--- a/kotlin-webmvc-spring-boot-3/build.gradle.kts
+++ b/kotlin-webmvc-spring-boot-3/build.gradle.kts
@@ -40,7 +40,7 @@ dependencies {
     developmentOnly("org.springframework.boot:spring-boot-devtools:3.2.4")
     runtimeOnly("org.postgresql:postgresql:42.7.3")
     testImplementation("org.springframework.boot:spring-boot-starter-test:3.2.4")
-    testImplementation("org.springframework.security:spring-security-test:6.2.3")
+    testImplementation("org.springframework.security:spring-security-test:6.5.5")
     testImplementation("org.mockito.kotlin:mockito-kotlin:5.3.1")
 }