diff --git a/planner/gradle/libs.versions.toml b/planner/gradle/libs.versions.toml
index fe2705fe..640ff879 100644
--- a/planner/gradle/libs.versions.toml
+++ b/planner/gradle/libs.versions.toml
@@ -51,7 +51,7 @@ test-junit-pioneer = "2.2.0"
 test-hamcrest = "2.2"
 test-shazamcrest = "0.11"
 test-jsonAssert = "1.5.1"
-test-assertj = "3.25.3"
+test-assertj = "3.26.0"
 
 test-jfixture = "2.7.2"