diff --git a/.gitignore b/.gitignore
index 0484d93..cd5260d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,2 @@
 /ffi-*.gem
-/ffi-*-spec.tgz
+/ffi-*-spec.txz
diff --git a/rubygem-ffi.spec b/rubygem-ffi.spec
index b234dfc..773bf1b 100644
--- a/rubygem-ffi.spec
+++ b/rubygem-ffi.spec
@@ -1,15 +1,15 @@
 %global gem_name ffi
 
 Name: rubygem-%{gem_name}
-Version: 1.10.0
-Release: 3%{?dist}
+Version: 1.12.1
+Release: 1%{?dist}
 Summary: FFI Extensions for Ruby
 License: BSD
-URL: http://wiki.github.com/ffi/ffi
+URL: https://github.com/ffi/ffi/wiki
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
-# git clone https://github.com/ffi/ffi.git && cd ffi
-# git checkout 1.10.0 && tar czvf ffi-1.10.0-spec.tgz spec/
-Source1: %{gem_name}-%{version}-spec.tgz
+# git clone https://github.com/ffi/ffi.git --no-checkout
+# cd ffi && git archive -v -o ffi-1.12.1-spec.txz 1.12.1 spec/
+Source1: %{gem_name}-%{version}-spec.txz
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
 BuildRequires: ruby-devel
@@ -63,7 +63,7 @@ pushd spec/ffi/fixtures
 make JFLAGS="%{optflags}"
 popd
 
-rspec -I$(dirs +1)%{gem_extdir_mri} spec
+RUBYOPT="-I$(dirs +1)%{gem_extdir_mri}" rspec spec
 popd
 
 %files
@@ -88,6 +88,9 @@ popd
 %{gem_instdir}/ffi.gemspec
 
 %changelog
+* Mon Jan 20 2020 Pavel Valena <pvalena@redhat.com> - 1.12.1-1
+- Update to ffi 1.12.1.
+
 * Fri Jul 26 2019 Fedora Release Engineering <releng@fedoraproject.org> - 1.10.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild
 
diff --git a/sources b/sources
index 979a03f..6d76377 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (ffi-1.10.0.gem) = 7bdb52c9912c976379fa50e86bc6cb2551c236b59f7610d864ab37a5357a231ed9b44c45941d8be68038e6e84542005b808045ed8da0e9e07de4428100f3bf1b
-SHA512 (ffi-1.10.0-spec.tgz) = 9afdea156c92b632a40f358b4b4a25898d5ef51019b3e543e96349a6c863c7d580c69c0661552a874f1b364684cfb13a8b594179ffb0326a8b9d77fe43260f63
+SHA512 (ffi-1.11.3.gem) = 2ccbcf64ec913391f26ac2f03abe43d64ecba847cf6771f34174183efa70ed30eeaa7a31c17a261d60ad99d55ade86b369dce3977fbf83de9f8942e85a22ced1
+SHA512 (ffi-1.11.3-spec.txz) = 4600c31c4c15e8ebca1aeefac56996fe0bb99a20ea6acdb68b78d45a5a4d283c6ff7016d2b4e5642bdf03f566b61293ce5337afe86fc34585e18e37321ac6884