diff --git a/spec/factories/invitation_request.rb b/spec/factories/invitation_request.rb
index 77fd4a10..e6401ee9 100644
--- a/spec/factories/invitation_request.rb
+++ b/spec/factories/invitation_request.rb
@@ -4,7 +4,7 @@ FactoryBot.define do
   factory :invitation_request do
     name { "pete smith" }
     sequence(:email) { |n| "user-#{n}@example.com" }
-    memo { "https://memo" }
+    memo { "https://memo.example" }
     ip_address { "1.1.1.1" }
   end
 end
diff --git a/spec/models/invitation_request_spec.rb b/spec/models/invitation_request_spec.rb
index 1088a77e..ca9d2f03 100644
--- a/spec/models/invitation_request_spec.rb
+++ b/spec/models/invitation_request_spec.rb
@@ -11,7 +11,7 @@ describe InvitationRequest do
   it "has a limit on the email field" do
     invitation_request = build(:invitation_request, email: "a" * 256 + "@b.b")
     invitation_request.valid?
-    expect(invitation_request.errors[:email]).to eq(["is too long (maximum is 255 characters)"])
+    expect(invitation_request.errors[:email]).to include("is too long (maximum is 255 characters)")
   end
 
   it "creates a code before validation" do
@@ -24,13 +24,13 @@ describe InvitationRequest do
   it "has a limit on the memo field" do
     invitation_request = build(:invitation_request, memo: "https://" + "a" * 256)
     invitation_request.valid?
-    expect(invitation_request.errors[:memo]).to eq(["is too long (maximum is 255 characters)"])
+    expect(invitation_request.errors[:memo]).to include("is too long (maximum is 255 characters)")
   end
 
   it "has a limit on the name field" do
     invitation_request = build(:invitation_request, name: "a" * 256)
     invitation_request.valid?
-    expect(invitation_request.errors[:name]).to eq(["is too long (maximum is 255 characters)"])
+    expect(invitation_request.errors[:name]).to include("is too long (maximum is 255 characters)")
   end
 
   it "has a limit on the ip_address field" do