diff --git a/redisson/src/main/java/org/redisson/WriteBehindService.java b/redisson/src/main/java/org/redisson/WriteBehindService.java
index 7dbd82d60..6bf3e98ae 100644
--- a/redisson/src/main/java/org/redisson/WriteBehindService.java
+++ b/redisson/src/main/java/org/redisson/WriteBehindService.java
@@ -26,7 +26,7 @@ import org.redisson.command.CommandAsyncExecutor;
  * @author Nikita Koksharov
  *
  */
-public class WriteBehindService {
+public final class WriteBehindService {
 
     private final ConcurrentMap<String, MapWriteBehindTask> tasks = new ConcurrentHashMap<>();
     private final CommandAsyncExecutor executor;
diff --git a/redisson/src/main/java/org/redisson/eviction/EvictionScheduler.java b/redisson/src/main/java/org/redisson/eviction/EvictionScheduler.java
index 26b0a6125..8bb07e67b 100644
--- a/redisson/src/main/java/org/redisson/eviction/EvictionScheduler.java
+++ b/redisson/src/main/java/org/redisson/eviction/EvictionScheduler.java
@@ -31,7 +31,7 @@ import java.util.function.Supplier;
  * @author Nikita Koksharov
  *
  */
-public class EvictionScheduler {
+public final class EvictionScheduler {
 
     private final Map<String, EvictionTask> tasks = new ConcurrentHashMap<>();
     private final CommandAsyncExecutor executor;