diff --git a/build.gradle b/build.gradle
index 1636b1bb..0f8eae25 100644
--- a/build.gradle
+++ b/build.gradle
@@ -124,7 +124,7 @@ publishing {
 
 dependencies {
   testImplementation group: 'org.mockito', name: 'mockito-core', version: '5.18.0'
-  testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.27.3'
+  testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.27.4'
   testImplementation group: 'com.github.stefanbirkner', name: 'system-rules', version: '1.19.0'
   testImplementation group: 'javax.servlet', name: 'javax.servlet-api', version: '4.0.1'
   testImplementation group: 'com.google.code.tempus-fugit', name: 'tempus-fugit', version: '1.1'
diff --git a/java-logging-appinsights/build.gradle b/java-logging-appinsights/build.gradle
index 26336daa..1fa445d7 100644
--- a/java-logging-appinsights/build.gradle
+++ b/java-logging-appinsights/build.gradle
@@ -55,5 +55,5 @@ dependencies {
   testImplementation group: 'org.springframework.boot', name: 'spring-boot-starter-test'
   testImplementation group: 'org.springframework.boot', name: 'spring-boot-starter-web'
 
-  testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.27.3'
+  testImplementation group: 'org.assertj', name: 'assertj-core', version: '3.27.4'
 }