diff --git a/Changes.md b/Changes.md
index eb7931b6..a5d721f3 100644
--- a/Changes.md
+++ b/Changes.md
@@ -2,6 +2,11 @@
 
 [Sidekiq Changes](https://github.com/mperham/sidekiq/blob/master/Changes.md) | [Sidekiq Pro Changes](https://github.com/mperham/sidekiq/blob/master/Pro-Changes.md) | [Sidekiq Enterprise Changes](https://github.com/mperham/sidekiq/blob/master/Ent-Changes.md)
 
+HEAD
+---------
+
+- Gracefully handle `Sidekiq.logger = nil` [#4240]
+
 6.0
 ---------
 
diff --git a/lib/sidekiq.rb b/lib/sidekiq.rb
index b0ab162a..837c4c33 100644
--- a/lib/sidekiq.rb
+++ b/lib/sidekiq.rb
@@ -199,6 +199,10 @@ module Sidekiq
   end
 
   def self.logger=(logger)
+    if logger.nil?
+      self.logger.level = Logger::FATAL
+      return self.logger
+    end
     @logger = logger
   end