diff --git a/agents/src/main/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDates.java b/agents/src/main/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDates.java
index 795cebab8..03908c184 100644
--- a/agents/src/main/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDates.java
+++ b/agents/src/main/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDates.java
@@ -41,7 +41,7 @@
  * lies within the specified date range. Otherwise, it evaluates to {@code false}.
  */
 @Getter
-public class BetweenDates implements Predicate<Action> {
+public final class BetweenDates implements Predicate<Action> {
 
     @NonNull private final LocalDate start;
     @NonNull private final LocalDate end;
diff --git a/agents/src/test/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDatesFactoryTest.java b/agents/src/test/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDatesFactoryTest.java
index 7b1b5e419..f7103ea17 100644
--- a/agents/src/test/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDatesFactoryTest.java
+++ b/agents/src/test/java/uk/ac/ox/poseidon/agents/regulations/predicates/BetweenDatesFactoryTest.java
@@ -31,16 +31,16 @@
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
 
+/**
+ * Test class for {@link BetweenDatesFactory}.
+ * <p>
+ * This class contains tests for the `newInstance` method of `BetweenDatesFactory`. The
+ * `newInstance` method creates a new {@link BetweenDates} object using the start and end dates
+ * obtained from the provided {@link Simulation}.
+ */
+@SuppressWarnings("unchecked")
 class BetweenDatesFactoryTest {
 
-    /**
-     * Test class for {@link BetweenDatesFactory}.
-     *
-     * This class contains tests for the `newInstance` method of `BetweenDatesFactory`.
-     * The `newInstance` method creates a new {@link BetweenDates} object
-     * using the start and end dates obtained from the provided {@link Simulation}.
-     */
-
     /**
      * Test when `newInstance` method successfully creates a `BetweenDates` object with valid start
      * and end dates.