diff --git a/agent/build.gradle b/agent/build.gradle
index 9656bf3..ebec41c 100644
--- a/agent/build.gradle
+++ b/agent/build.gradle
@@ -68,7 +68,7 @@ dependencies {
     compileOnly 'io.projectreactor:reactor-core:3.2.5.RELEASE'
     compileOnly 'io.reactivex.rxjava2:rxjava:2.2.18'
 
-    jarFileTestImplementation 'org.assertj:assertj-core:3.25.3'
+    jarFileTestImplementation 'org.assertj:assertj-core:3.26.0'
     jarFileTestImplementation 'junit:junit:4.13.2'
 }
 
diff --git a/example/build.gradle b/example/build.gradle
index 004ce7d..0662c3d 100644
--- a/example/build.gradle
+++ b/example/build.gradle
@@ -46,7 +46,7 @@ dependencies {
     testImplementation 'io.reactivex.rxjava2:rxjava:2.2.18'
 
     testImplementation 'junit:junit:4.13.2'
-    testImplementation 'org.assertj:assertj-core:3.25.3'
+    testImplementation 'org.assertj:assertj-core:3.26.0'
 
     reactor_3_3_x 'io.projectreactor:reactor-core:3.2.5.RELEASE'
 }
diff --git a/junit-platform/build.gradle b/junit-platform/build.gradle
index 12143b6..bd13d5b 100644
--- a/junit-platform/build.gradle
+++ b/junit-platform/build.gradle
@@ -29,7 +29,7 @@ dependencies {
 
     compileOnly 'org.junit.platform:junit-platform-launcher:1.0.0'
 
-    testImplementation 'org.assertj:assertj-core:3.25.3'
+    testImplementation 'org.assertj:assertj-core:3.26.0'
     testImplementation 'io.projectreactor:reactor-core:3.2.5.RELEASE'
 
     testImplementation 'org.junit.jupiter:junit-jupiter-api:5.10.2'