diff --git a/.gitignore b/.gitignore
index 5da3d92..4b9d36a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,4 @@
 /tzdata2021c.tar.gz
 /tzdata2021d.tar.gz
 /tzdata2021e.tar.gz
+/tzdata2022a.tar.gz
diff --git a/perl-DateTime-TimeZone.spec b/perl-DateTime-TimeZone.spec
index f4b468a..40a5018 100644
--- a/perl-DateTime-TimeZone.spec
+++ b/perl-DateTime-TimeZone.spec
@@ -2,11 +2,11 @@
 %bcond_without perl_DateTime_TimeZone_enables_optional_test
 
 # Regenerate Perl library code from upstream Olson database of this date
-%global tzversion 2021e
+%global tzversion 2022a
 
 Name:           perl-DateTime-TimeZone
-Version:        2.51
-Release:        2%{?dist}
+Version:        2.52
+Release:        1%{?dist}
 Summary:        Time zone object base class and factory
 # tzdata%%{tzversion}.tar.gz archive:   Public Domain
 # other files:                          GPL+ or Artistic
@@ -181,6 +181,9 @@ make test
 %{_libexecdir}/%{name}
 
 %changelog
+* Thu Mar 24 2022 Jitka Plesnikova <jplesnik@redhat.com> - 2.52-1
+- 2.52 bump (2022a Olson database)
+
 * Fri Jan 21 2022 Fedora Release Engineering <releng@fedoraproject.org> - 2.51-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_36_Mass_Rebuild
 
diff --git a/sources b/sources
index a36515d..d924c1a 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (DateTime-TimeZone-2.51.tar.gz) = 11a506d71cb0875b322c9fe4bdb76a4ab2569127f33530a0970f50a851dc13b2e70dd110eca24a23fd997b3dae3c595045c6d3b03223615b40e6855be28ede08
-SHA512 (tzdata2021e.tar.gz) = c1e8d04e049157ed5d4af0868855bbd75517e3d7e1db9c41d5283ff260109de46b6fac6be94828201d093e163d868044ac2a9db2bf0aeab800e264d0c73a9119
+SHA512 (DateTime-TimeZone-2.52.tar.gz) = 697aaaf6e312b7fa57af0449ea14893f04e5c4c657cf34cb5f5892d7dd2d69532c68ff2b086472f39e26f119106fc4671395fc4fe6a8dd131f018abf5765d7af
+SHA512 (tzdata2022a.tar.gz) = 542e4559beac8fd8c4af7d08d816fd12cfe7ffcb6f20bba4ff1c20eba717749ef96e5cf599b2fe03b5b8469c0467f8cb1c893008160da281055a123dd9e810d9