diff --git a/lib/mini_scheduler.rb b/lib/mini_scheduler.rb
index e6bea57..a4f5bbf 100644
--- a/lib/mini_scheduler.rb
+++ b/lib/mini_scheduler.rb
@@ -17,16 +17,23 @@ def self.configure
     yield self
   end
 
+  SidekiqExceptionHandler =
+    if defined?(Sidekiq.default_configuration) # Sidekiq 7+
+      ->(ex, ctx, _config = nil) { Sidekiq.default_configuration.handle_exception(ex, ctx) }
+    else # Sidekiq 6.5
+      ->(ex, ctx) { Sidekiq.handle_exception(ex, ctx) }
+    end
+
   def self.job_exception_handler(&blk)
     @job_exception_handler = blk if blk
     @job_exception_handler
   end
 
-  def self.handle_job_exception(ex, context = {})
+  def self.handle_job_exception(ex, context = {}, _config = nil)
     if job_exception_handler
       job_exception_handler.call(ex, context)
     else
-      Sidekiq.default_configuration.handle_exception(ex, context)
+      SidekiqExceptionHandler.call(ex, context)
     end
   end
 
diff --git a/spec/mini_scheduler/manager_spec.rb b/spec/mini_scheduler/manager_spec.rb
index 821c848..264697b 100644
--- a/spec/mini_scheduler/manager_spec.rb
+++ b/spec/mini_scheduler/manager_spec.rb
@@ -418,7 +418,7 @@ def expect_job_failure(ex, ctx)
       class TempSidekiqLogger
         attr_accessor :exception, :context
 
-        def call(ex, ctx, _component)
+        def call(ex, ctx, _config)
           self.exception = ex
           self.context = ctx
         end
@@ -438,7 +438,9 @@ def call(ex, ctx, _component)
     end
 
     context "with custom handler" do
-      before { MiniScheduler.job_exception_handler { |ex, ctx| expect_job_failure(ex, ctx) } }
+      before do
+        MiniScheduler.job_exception_handler { |ex, ctx, _config = nil| expect_job_failure(ex, ctx) }
+      end
 
       after { MiniScheduler.instance_variable_set :@job_exception_handler, nil }