diff --git a/java/bed-allocation/pom.xml b/java/bed-allocation/pom.xml
index 86a9ee5d3e..2a86a701e3 100644
--- a/java/bed-allocation/pom.xml
+++ b/java/bed-allocation/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/conference-scheduling/pom.xml b/java/conference-scheduling/pom.xml
index 6160655e6e..092a72821e 100644
--- a/java/conference-scheduling/pom.xml
+++ b/java/conference-scheduling/pom.xml
@@ -89,7 +89,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/employee-scheduling/pom.xml b/java/employee-scheduling/pom.xml
index 110ac3b8bf..651edce544 100644
--- a/java/employee-scheduling/pom.xml
+++ b/java/employee-scheduling/pom.xml
@@ -119,7 +119,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/java/facility-location/pom.xml b/java/facility-location/pom.xml
index 4dd7675eb6..1e7b15bf5d 100644
--- a/java/facility-location/pom.xml
+++ b/java/facility-location/pom.xml
@@ -79,7 +79,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/java/flight-crew-scheduling/pom.xml b/java/flight-crew-scheduling/pom.xml
index 7b7f52ac1f..1357ce6e39 100644
--- a/java/flight-crew-scheduling/pom.xml
+++ b/java/flight-crew-scheduling/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/food-packaging/pom.xml b/java/food-packaging/pom.xml
index 682843757b..721c7bacfc 100644
--- a/java/food-packaging/pom.xml
+++ b/java/food-packaging/pom.xml
@@ -114,7 +114,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/java/hello-world/pom.xml b/java/hello-world/pom.xml
index 4e440d9c88..cde18a1e3b 100644
--- a/java/hello-world/pom.xml
+++ b/java/hello-world/pom.xml
@@ -13,7 +13,7 @@
     <jar.with.dependencies.name>hello-world-run</jar.with.dependencies.name>
 
     <version.ai.timefold.solver>999-SNAPSHOT</version.ai.timefold.solver>
-    <version.org.assertj>3.26.3</version.org.assertj>
+    <version.org.assertj>3.27.0</version.org.assertj>
     <version.org.junit.jupiter>5.11.4</version.org.junit.jupiter>
     <version.ch.qos.logback>1.5.12</version.ch.qos.logback>
 
diff --git a/java/maintenance-scheduling/pom.xml b/java/maintenance-scheduling/pom.xml
index 7ab4b7a835..b08c50bdc0 100644
--- a/java/maintenance-scheduling/pom.xml
+++ b/java/maintenance-scheduling/pom.xml
@@ -119,7 +119,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/java/meeting-scheduling/pom.xml b/java/meeting-scheduling/pom.xml
index 6233c1c992..a08c37416b 100644
--- a/java/meeting-scheduling/pom.xml
+++ b/java/meeting-scheduling/pom.xml
@@ -90,7 +90,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/order-picking/pom.xml b/java/order-picking/pom.xml
index 5e25009e09..78bb51f11f 100644
--- a/java/order-picking/pom.xml
+++ b/java/order-picking/pom.xml
@@ -124,7 +124,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/java/project-job-scheduling/pom.xml b/java/project-job-scheduling/pom.xml
index 67b6d9460f..d54bffbe85 100644
--- a/java/project-job-scheduling/pom.xml
+++ b/java/project-job-scheduling/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/school-timetabling/pom.xml b/java/school-timetabling/pom.xml
index c974565b48..4f911035eb 100644
--- a/java/school-timetabling/pom.xml
+++ b/java/school-timetabling/pom.xml
@@ -89,7 +89,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/java/sports-league-scheduling/pom.xml b/java/sports-league-scheduling/pom.xml
index 569b2c7b5b..0135dde79d 100644
--- a/java/sports-league-scheduling/pom.xml
+++ b/java/sports-league-scheduling/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/task-assigning/pom.xml b/java/task-assigning/pom.xml
index a6a0dc26e1..4a62e3f476 100644
--- a/java/task-assigning/pom.xml
+++ b/java/task-assigning/pom.xml
@@ -90,7 +90,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/tournament-scheduling/pom.xml b/java/tournament-scheduling/pom.xml
index 8c3d6a956c..ebc114deb6 100644
--- a/java/tournament-scheduling/pom.xml
+++ b/java/tournament-scheduling/pom.xml
@@ -84,7 +84,7 @@
         <dependency>
             <groupId>org.assertj</groupId>
             <artifactId>assertj-core</artifactId>
-            <version>3.26.3</version>
+            <version>3.27.0</version>
             <scope>test</scope>
         </dependency>
 
diff --git a/java/vehicle-routing/pom.xml b/java/vehicle-routing/pom.xml
index 3e8dd875ce..0daacbeb62 100644
--- a/java/vehicle-routing/pom.xml
+++ b/java/vehicle-routing/pom.xml
@@ -84,7 +84,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/kotlin/school-timetabling/pom.xml b/kotlin/school-timetabling/pom.xml
index f3495706e0..65d7aed492 100644
--- a/kotlin/school-timetabling/pom.xml
+++ b/kotlin/school-timetabling/pom.xml
@@ -98,7 +98,7 @@
     <dependency>
       <groupId>org.assertj</groupId>
       <artifactId>assertj-core</artifactId>
-      <version>3.26.3</version>
+      <version>3.27.0</version>
       <scope>test</scope>
     </dependency>