diff --git a/build.gradle.kts b/build.gradle.kts
index b2582ab..7f646ed 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -7,6 +7,12 @@ plugins {
 
 version = file("version").readLines().first()
 
+configurations.all {
+    resolutionStrategy {
+        force("org.junit-pioneer:junit-pioneer:1.7.1")
+    }
+}
+
 jagr {
     assignmentId.set("h06")
     submissions {
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index dfabc90..23befaf 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -10,7 +10,7 @@ annotations = "org.jetbrains:annotations:23.0.0"
 algoutils-student = { module = "org.tudalgo:algoutils-student", version.ref = "algoutils" }
 algoutils-tutor = { module = "org.tudalgo:algoutils-tutor", version.ref = "algoutils" }
 junit-core = { module = "org.junit.jupiter:junit-jupiter", version = "5.9.1" }
-junit-pioneer = { module = "org.junit-pioneer:junit-pioneer", version = "1.7.1" }
+junit-pioneer = { module = "org.junit-pioneer:junit-pioneer", version = "2.2.0" }
 fopbot = { module = "org.tudalgo:fopbot", version = "0.7.0" }
 
 [bundles]
diff --git a/src/graderPrivate/java/h06/H3_MazeSolverRecursiveTest.java b/src/graderPrivate/java/h06/H3_MazeSolverRecursiveTest.java
index f930f70..580090d 100644
--- a/src/graderPrivate/java/h06/H3_MazeSolverRecursiveTest.java
+++ b/src/graderPrivate/java/h06/H3_MazeSolverRecursiveTest.java
@@ -234,6 +234,7 @@ public void testRequirements() {
                 && !method.getCtElement().filterChildren(it -> it instanceof CtConditional<?>).list().isEmpty();
             boolean condAndAssign = expression instanceof CtAssignment<?, ?> assignment
                 && assignment.getAssignment() instanceof CtConditional<?>;
+
             assertTrue(condRet || condAndVarRead || condAndAssign, context.build(),
                 result -> "MazeSolverRecursive#nextStep(World, Point, DirectionVector) should contain exactly one "
                     + "conditional statement, but found %s"
diff --git a/src/graderPrivate/java/h06/H4_MazeSolverIterativeTest.java b/src/graderPrivate/java/h06/H4_MazeSolverIterativeTest.java
index e30449a..f97c155 100644
--- a/src/graderPrivate/java/h06/H4_MazeSolverIterativeTest.java
+++ b/src/graderPrivate/java/h06/H4_MazeSolverIterativeTest.java
@@ -31,6 +31,7 @@
 import java.awt.Point;
 import java.util.Arrays;
 import java.util.List;
+import java.util.concurrent.TimeUnit;
 import java.util.stream.Stream;
 
 import static h06.TutorUtils.assertIterative;