diff --git a/rubygem-ffi.spec b/rubygem-ffi.spec
index 0df3cde..5bd3804 100644
--- a/rubygem-ffi.spec
+++ b/rubygem-ffi.spec
@@ -1,14 +1,14 @@
 %global gem_name ffi
 
 Name: rubygem-%{gem_name}
-Version: 1.12.1
-Release: 3%{?dist}
+Version: 1.13.1
+Release: 1%{?dist}
 Summary: FFI Extensions for Ruby
 License: BSD
 URL: https://github.com/ffi/ffi/wiki
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
 # 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/
+# cd ffi && git archive -v -o ffi-1.13.1-spec.txz 1.13.1 spec/
 Source1: %{gem_name}-%{version}-spec.txz
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel
@@ -17,7 +17,8 @@ BuildRequires: ruby-devel
 # https://fedoraproject.org/wiki/Packaging:C_and_C++#BuildRequires_and_Requires
 BuildRequires: gcc
 BuildRequires: libffi-devel
-BuildRequires: rubygem(rspec)
+BuildRequires: rubygem(rspec) >= 3
+BuildRequires: rubygem(bigdecimal)
 
 %description
 Ruby-FFI is a ruby extension for programmatically loading dynamic
@@ -88,6 +89,10 @@ popd
 %{gem_instdir}/ffi.gemspec
 
 %changelog
+* Thu Nov 12 22:57:22 CET 2020 Pavel Valena <pvalena@redhat.com> - 1.13.1-1
+- Update to ffi 1.13.1.
+  Resolves: rhbz#1797215
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.12.1-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index 4c5b68d..9f9ba10 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (ffi-1.12.1.gem) = ad4a0c8ca49157cb8042283cb4481bace124df48b45ff481e3ade2c9415bc4c6e2a0cfcaecee230260e748426c992ac3c375f417a3bd56b317b27e966f1745af
-SHA512 (ffi-1.12.1-spec.txz) = 66033941b2e1a86fab634771aaaf169b42965d447906e8e7de192afb5309a6ddd5f184ded9a6aa373d5ed521c4ab82f5a2be0fb687632573ce29cb44700bee81
+SHA512 (ffi-1.13.1.gem) = 4c0b5086463c5abedc440c44fb12c62612627a2aaad60b1959ea8831d4ec2bbe3217fec0b63612730bb219748fd2bd2252dd615ca0305fb7f0e8456c63c31fbd
+SHA512 (ffi-1.13.1-spec.txz) = 875ab8976d912f03aa4b26d23c5bb0b33fbbc89e531f4fc4db763547f157afabebe709d83ac2cd7c1b72d7778d408ab52e80136dc73629ce5d816a517820ba70