diff --git a/.gitignore b/.gitignore
index 550f39d..515e7a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,5 @@
 /multi_json-1.13.1.gem
 /multi_json-1.14.1-spec.tar.gz
 /multi_json-1.14.1.gem
+/multi_json-1.15.0-spec.tar.gz
+/multi_json-1.15.0.gem
diff --git a/rubygem-multi_json.spec b/rubygem-multi_json.spec
index 76b6337..a33b47f 100644
--- a/rubygem-multi_json.spec
+++ b/rubygem-multi_json.spec
@@ -2,14 +2,14 @@
 %global gem_name multi_json
 
 Name: rubygem-%{gem_name}
-Version: 1.14.1
-Release: 2%{?dist}
+Version: 1.15.0
+Release: 1%{?dist}
 Summary: A common interface to multiple JSON libraries
 License: MIT
 URL: https://github.com/intridea/multi_json
 Source0: https://rubygems.org/gems/%{gem_name}-%{version}.gem
 # git clone https://github.com/intridea/multi_json.git && cd multi_json
-# git archive -v -o multi_json-1.14.1-spec.tar.gz v1.14.1 spec/
+# git archive -v -o multi_json-1.15.0-spec.tar.gz v1.15.0 spec/
 Source1: %{gem_name}-%{version}-spec.tar.gz
 BuildRequires: ruby(release)
 BuildRequires: rubygems-devel >= 1.3.5
@@ -85,6 +85,10 @@ popd
 %doc %{gem_instdir}/README.md
 
 %changelog
+* Fri Nov 06 2020 Vít Ondruch <vondruch@redhat.com> - 1.15.0-1
+- Update to MultiJSON 1.15.0.
+  Resolves: rhbz#1855521
+
 * Wed Jul 29 2020 Fedora Release Engineering <releng@fedoraproject.org> - 1.14.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index 379d830..aea6af2 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (multi_json-1.14.1-spec.tar.gz) = 55012bfa41601309cad423d350f65a407cbe6fb213530f62ee37b3546f4c90584cf29d2fd450e9d57811fee67421ea7a5027a0985c3d203cee35aca39b642112
-SHA512 (multi_json-1.14.1.gem) = 9d9ccc2876f6b3191241d14e556c463fbf273ad3831921fde43107810c03a6623929711fcf48acd7b4b5758286d1fb8b4b6be8ece6d1f137f6c3d64db58a7927
+SHA512 (multi_json-1.15.0-spec.tar.gz) = 41b3d08807b2511f836557fd5464c94d18e4b16658770a9d0d7b107fb87436ae0091a46e6f06a5afab611f30d088f4d9b31a49ddd408259a32cc123a1ada753d
+SHA512 (multi_json-1.15.0.gem) = 5021b66bd607bde8679899ff48fbf596cdf6a4f6c026472b20f25bd1933d105bef597c143ab529804d7b5a4a244476be24555f13a7fbe9fef30bbe1fb92978eb