diff --git a/.gitignore b/.gitignore
index c743c70..76f3df8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /rspec-its-1.1.0.gem
+/rspec-its-1.2.0.gem
diff --git a/rubygem-rspec-its-1.2.0-Fix-Ruby-2.4-compatibility.patch b/rubygem-rspec-its-1.2.0-Fix-Ruby-2.4-compatibility.patch
new file mode 100644
index 0000000..b10e70d
--- /dev/null
+++ b/rubygem-rspec-its-1.2.0-Fix-Ruby-2.4-compatibility.patch
@@ -0,0 +1,33 @@
+From e28d273df0c75a16278bd959d46c6489b035860e Mon Sep 17 00:00:00 2001
+From: Pavel Valena <pvalena@redhat.com>
+Date: Tue, 12 Sep 2017 23:19:25 +0200
+Subject: [PATCH] Fixnum to integer
+
+---
+ spec/rspec/its_spec.rb | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/spec/rspec/its_spec.rb b/spec/rspec/its_spec.rb
+index 91eed5f..83788f6 100644
+--- a/spec/rspec/its_spec.rb
++++ b/spec/rspec/its_spec.rb
+@@ -55,7 +55,7 @@ module RSpec
+           end
+           its("name") { should eq("John") }
+           its("name.size") { should eq(4) }
+-          its("name.size.class") { should eq(Fixnum) }
++          its("name.size.class") { should eq(Integer) }
+ 
+           context "using should_not" do
+             its("name") { should_not eq("Paul") }
+@@ -86,7 +86,7 @@ module RSpec
+           end
+           its([:a]) { should eq("Symbol: a") }
+           its(['a']) { should eq("String: a") }
+-          its([:b, 'c', 4]) { should eq("Symbol: b; String: c; Fixnum: 4") }
++          its([:b, 'c', 4]) { should eq("Symbol: b; String: c; Integer: 4") }
+           its(:name) { should eq("George") }
+           context "when referring to an attribute that doesn't exist" do
+             context "it raises an error" do
+-- 
+1.8.3.1
diff --git a/rubygem-rspec-its.spec b/rubygem-rspec-its.spec
index 1848538..60d20cc 100644
--- a/rubygem-rspec-its.spec
+++ b/rubygem-rspec-its.spec
@@ -1,13 +1,18 @@
 %global gem_name rspec-its
 
 Name: rubygem-%{gem_name}
-Version: 1.1.0
-Release: 5%{?dist}
-Summary: Provides "its" method formally part of rspec-core
+Version: 1.2.0
+Release: 1%{?dist}
+Summary: Provides "its" method formerly part of rspec-core
 Group: Development/Languages
 License: MIT
 URL: https://github.com/rspec/rspec-its
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
+
+# Fix Ruby 2.4 compatibility
+# https://github.com/rspec/rspec-its/pull/45
+Patch0: rubygem-rspec-its-1.2.0-Fix-Ruby-2.4-compatibility.patch
+
 %if 0%{?el7}
 Requires: ruby(release)
 Requires: ruby(rubygems)
@@ -69,6 +74,7 @@ cp -a .%{gem_dir}/* \
 
 %check
 pushd .%{gem_instdir}
+cat %{PATCH0} | patch -p1 -F 0
   rspec -Ilib spec
   # cucumber tests are non-functional during RPM build
   #cucumber -Ilib features/*.feature
@@ -93,6 +99,9 @@ popd
 
 
 %changelog
+* Tue Sep 12 2017 Pavel Valena <pvalena@redhat.com> - 1.2.0-1
+- Update to 1.2.0.
+
 * Thu Jul 27 2017 Fedora Release Engineering <releng@fedoraproject.org> - 1.1.0-5
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_27_Mass_Rebuild
 
diff --git a/sources b/sources
index b75bebc..566ae11 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-7e355caebff9a7f3cecc45096740d9f6  rspec-its-1.1.0.gem
+SHA512 (rspec-its-1.2.0.gem) = 6b390f92654f8e6482f0da30d4e721ee127f628eb305268e474d4c9fb14fca1d0fb8922cabc9a8c1372976b5a52349c5a5a774e3026f32d8050c5aea2bc9ccae