diff --git a/spec/models/status_message_spec.rb b/spec/models/status_message_spec.rb
index 718f49ba3..d7632958e 100644
--- a/spec/models/status_message_spec.rb
+++ b/spec/models/status_message_spec.rb
@@ -193,7 +193,7 @@ describe StatusMessage, type: :model do
 
     it "should queue a GatherOembedData if it includes a link" do
       status_message
-      expect(Workers::GatherOEmbedData).to receive(:perform_async).with(instance_of(Fixnum), instance_of(String))
+      expect(Workers::GatherOEmbedData).to receive(:perform_async).with(kind_of(Integer), instance_of(String))
       status_message.save
     end
 
@@ -214,7 +214,7 @@ describe StatusMessage, type: :model do
 
     it "should queue a GatherOpenGraphData if it includes a link" do
       status_message
-      expect(Workers::GatherOpenGraphData).to receive(:perform_async).with(instance_of(Fixnum), instance_of(String))
+      expect(Workers::GatherOpenGraphData).to receive(:perform_async).with(kind_of(Integer), instance_of(String))
       status_message.save
     end
 
diff --git a/spec/presenters/o_embed_presenter_spec.rb b/spec/presenters/o_embed_presenter_spec.rb
index 9a14a5e7a..55c19a80e 100644
--- a/spec/presenters/o_embed_presenter_spec.rb
+++ b/spec/presenters/o_embed_presenter_spec.rb
@@ -17,7 +17,7 @@ describe OEmbedPresenter do
 
   describe '#iframe_html' do
     it 'passes the height options to post_iframe_url' do
-      expect(@oembed).to receive(:post_iframe_url).with(instance_of(Fixnum), instance_of(Hash))
+      expect(@oembed).to receive(:post_iframe_url).with(kind_of(Integer), instance_of(Hash))
       @oembed.iframe_html
     end
   end
@@ -31,4 +31,4 @@ describe OEmbedPresenter do
       expect(OEmbedPresenter.id_from_url('http://localhost:400/p/1')).to eq("1")
     end
   end
-end
\ No newline at end of file
+end
diff --git a/spec/workers/send_private_spec.rb b/spec/workers/send_private_spec.rb
index 92765c0a2..e3d9a99bc 100644
--- a/spec/workers/send_private_spec.rb
+++ b/spec/workers/send_private_spec.rb
@@ -23,7 +23,7 @@ describe Workers::SendPrivate do
       sender_id, obj_str, targets
     ).and_return(failing_targets)
     expect(Workers::SendPrivate).to receive(:perform_in).with(
-      kind_of(Fixnum), sender_id, obj_str, failing_targets, 1
+      kind_of(Integer), sender_id, obj_str, failing_targets, 1
     )
 
     Workers::SendPrivate.new.perform(sender_id, obj_str, targets)
diff --git a/spec/workers/send_public_spec.rb b/spec/workers/send_public_spec.rb
index bf34c6501..4f87ddb33 100644
--- a/spec/workers/send_public_spec.rb
+++ b/spec/workers/send_public_spec.rb
@@ -19,7 +19,7 @@ describe Workers::SendPublic do
       sender_id, obj_str, urls, xml
     ).and_return(failing_urls)
     expect(Workers::SendPublic).to receive(:perform_in).with(
-      kind_of(Fixnum), sender_id, obj_str, failing_urls, xml, 1
+      kind_of(Integer), sender_id, obj_str, failing_urls, xml, 1
     )
 
     Workers::SendPublic.new.perform(sender_id, obj_str, urls, xml)