diff --git a/.gitignore b/.gitignore
index 507a1f8..6b49b09 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1 @@
-/nio4r-1.2.1.gem
-/nio4r-2.0.0.gem
-/nio4r-2.1.0.gem
-/nio4r-2.2.0.gem
-/nio4r-2.3.1.gem
-/nio4r-2.4.0.gem
+/nio4r-*.gem
diff --git a/rubygem-nio4r.spec b/rubygem-nio4r.spec
index 5f30e22..5335868 100644
--- a/rubygem-nio4r.spec
+++ b/rubygem-nio4r.spec
@@ -1,11 +1,11 @@
 # Generated from nio4r-1.2.1.gem by gem2rpm -*- rpm-spec -*-
 %global gem_name nio4r
 
-%global libev_version 4.25
+%global libev_version 4.27
 
 Name: rubygem-%{gem_name}
-Version: 2.4.0
-Release: 3%{?dist}
+Version: 2.5.2
+Release: 1%{?dist}
 Summary: New IO for Ruby
 # The entire source code is MIT, bundled libev is BSD or GPLv2+
 License: MIT and (BSD or GPLv2+)
@@ -89,7 +89,9 @@ popd
 %dir %{gem_instdir}
 %{gem_extdir_mri}
 %exclude %{gem_instdir}/.*
-%license %{gem_instdir}/LICENSE.txt
+# License file was removed in favor of README.md
+# https://github.com/socketry/nio4r/issues/228
+%license %{gem_instdir}/README.md
 %exclude %{gem_instdir}/appveyor.yml
 %{gem_libdir}
 %exclude %{gem_cache}
@@ -98,7 +100,6 @@ popd
 %files doc
 %doc %{gem_docdir}
 %{gem_instdir}/Gemfile
-%doc %{gem_instdir}/README.md
 %doc %{gem_instdir}/CHANGES.md
 %{gem_instdir}/logo.png
 %{gem_instdir}/rakelib
@@ -109,6 +110,9 @@ popd
 %{gem_instdir}/spec
 
 %changelog
+* Fri Nov 15 2019 Pavel Valena <pvalena@redhat.com> - 2.5.2-1
+- Update to nio4r 2.5.2.
+
 * Fri Jan 17 2020 Vít Ondruch <vondruch@redhat.com> - 2.4.0-3
 - Rebuilt for https://fedoraproject.org/wiki/Changes/Ruby_2.7
 
diff --git a/sources b/sources
index ffc1d62..9c4b450 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nio4r-2.4.0.gem) = 2cd77c4af934c10cbcc23e926d0111a319bd9be69b0ead9c5c5614911f2cd3127ffa9fb103907d961b59e6f846cc83ac9a97722a85dac390dbf2f2a20976a0c0
+SHA512 (nio4r-2.5.2.gem) = 3db567c9994e9186749e37c3ebc07f744e7a82c1163d44222475cf491f945745c6c070f4a0a8c77e331921147cc1f5f7bfffd86cb3455d5864280c4e4945b295