diff --git a/CHANGELOG.md b/CHANGELOG.md
index 52191a8d..39444c93 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,7 @@
 ### 2.0.1 (2019-11-13)
 
   * Fixed normalization of Traversables to avoid traversing them as not all of them are rewindable
-  * Fixed setFormatter/getFormatter to forward to the nested handler in FilterHandler, FingersCrossedHandler, BufferHandler and SamplingHandler
+  * Fixed setFormatter/getFormatter to forward to the nested handler in FilterHandler, FingersCrossedHandler, BufferHandler, OverflowHandler and SamplingHandler
   * Fixed BrowserConsoleHandler formatting when using multiple styles
   * Fixed normalization of exception codes to be always integers even for PDOException which have them as numeric strings
   * Fixed normalization of SoapFault objects containing non-strings as "detail"
diff --git a/src/Monolog/Handler/BufferHandler.php b/src/Monolog/Handler/BufferHandler.php
index c3fcc4ae..7a590284 100644
--- a/src/Monolog/Handler/BufferHandler.php
+++ b/src/Monolog/Handler/BufferHandler.php
@@ -23,7 +23,7 @@ use Monolog\Formatter\FormatterInterface;
  *
  * @author Christophe Coevoet <stof@notk.org>
  */
-class BufferHandler extends AbstractHandler implements ProcessableHandlerInterface
+class BufferHandler extends AbstractHandler implements ProcessableHandlerInterface, FormattableHandlerInterface
 {
     use ProcessableHandlerTrait;
 
@@ -135,7 +135,7 @@ class BufferHandler extends AbstractHandler implements ProcessableHandlerInterfa
     /**
      * {@inheritdoc}
      */
-    public function setFormatter(FormatterInterface $formatter)
+    public function setFormatter(FormatterInterface $formatter): HandlerInterface
     {
         $this->handler->setFormatter($formatter);
 
@@ -145,7 +145,7 @@ class BufferHandler extends AbstractHandler implements ProcessableHandlerInterfa
     /**
      * {@inheritdoc}
      */
-    public function getFormatter()
+    public function getFormatter(): FormatterInterface
     {
         return $this->handler->getFormatter();
     }
diff --git a/src/Monolog/Handler/OverflowHandler.php b/src/Monolog/Handler/OverflowHandler.php
index 3d034b97..448f6334 100644
--- a/src/Monolog/Handler/OverflowHandler.php
+++ b/src/Monolog/Handler/OverflowHandler.php
@@ -12,6 +12,7 @@
 namespace Monolog\Handler;
 
 use Monolog\Logger;
+use Monolog\Formatter\FormatterInterface;
 
 /**
  * Handler to only pass log messages when a certain threshold of number of messages is reached.
@@ -33,7 +34,7 @@ use Monolog\Logger;
  *
  * @author Kris Buist <krisbuist@gmail.com>
  */
-class OverflowHandler extends AbstractHandler
+class OverflowHandler extends AbstractHandler implements FormattableHandlerInterface
 {
     /** @var HandlerInterface */
     private $handler;
@@ -124,4 +125,22 @@ class OverflowHandler extends AbstractHandler
 
         return false === $this->bubble;
     }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function setFormatter(FormatterInterface $formatter): HandlerInterface
+    {
+        $this->handler->setFormatter($formatter);
+
+        return $this;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getFormatter(): FormatterInterface
+    {
+        return $this->handler->getFormatter();
+    }
 }