diff --git a/java/hello-world/build.gradle b/java/hello-world/build.gradle
index 09ee6a9028..2d816de974 100644
--- a/java/hello-world/build.gradle
+++ b/java/hello-world/build.gradle
@@ -6,7 +6,7 @@ plugins {
 def timefoldVersion = "999-SNAPSHOT"
 def logbackVersion = "1.5.16"
 def junitJupiterVersion = "5.11.4"
-def assertjVersion = "3.27.2"
+def assertjVersion = "3.27.3"
 def profile = System.properties['profile'] ?: ''
 
 group = "org.acme"
diff --git a/java/school-timetabling/build.gradle b/java/school-timetabling/build.gradle
index c56af54fb9..cc77855086 100644
--- a/java/school-timetabling/build.gradle
+++ b/java/school-timetabling/build.gradle
@@ -37,7 +37,7 @@ dependencies {
     testImplementation "io.rest-assured:rest-assured"
     testImplementation "ai.timefold.solver:timefold-solver-test"
     testImplementation "org.awaitility:awaitility"
-    testImplementation "org.assertj:assertj-core:3.27.2"
+    testImplementation "org.assertj:assertj-core:3.27.3"
 
     // UI
     implementation "io.quarkus:quarkus-webjars-locator"
diff --git a/java/spring-boot-integration/build.gradle b/java/spring-boot-integration/build.gradle
index 30ed7121a5..d1e7e3f543 100644
--- a/java/spring-boot-integration/build.gradle
+++ b/java/spring-boot-integration/build.gradle
@@ -48,7 +48,7 @@ dependencies {
     testImplementation("ai.timefold.solver:timefold-solver-test")
     testImplementation("org.springframework:spring-webflux")
     testImplementation "org.awaitility:awaitility"
-    testImplementation "org.assertj:assertj-core:3.27.2"
+    testImplementation "org.assertj:assertj-core:3.27.3"
 
     // UI
     // No webjar locator; incompatible in native mode;