diff --git a/.gitignore b/.gitignore
index d566669..efc7adb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,5 +7,3 @@
 /0xDBF6D7E1095FD0D9.asc
 /libanet-0.5.0.tar.bz2
 /libanet-0.5.0.tar.bz2.sig
-/libanet-0.5.1.tar.bz2
-/libanet-0.5.1.tar.bz2.sig
diff --git a/anet.spec b/anet.spec
index d6c93ab..85504e4 100644
--- a/anet.spec
+++ b/anet.spec
@@ -1,6 +1,6 @@
 Name:           anet
-Version:        0.5.1
-Release:        7%{?dist}
+Version:        0.5.0
+Release:        2%{?dist}
 Summary:        Ada Networking Library
 
 License:        GPL-2.0-or-later WITH GNAT-exception
@@ -13,7 +13,9 @@ Patch:          anet-0.3.3-no_IPv6_multicast_test.patch
 
 BuildRequires:  gcc-gnat fedora-gnat-project-common make ahven-devel
 BuildRequires:  gprbuild
-BuildRequires:  gpgverify
+BuildRequires:  gnupg2
+# gpgverify was introduced in redhat-rpm-config 129.
+BuildRequires:  redhat-rpm-config >= 129
 BuildRequires:  asciidoctor
 BuildRequires:  sed
 # Build only on architectures where GPRbuild is available:
@@ -119,27 +121,6 @@ make tests %{all_the_flags}
 
 
 %changelog
-* Fri Jan 16 2026 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-7
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_44_Mass_Rebuild
-
-* Wed Jan 07 2026 Björn Persson <Bjorn@Rombobjörn.se> - 0.5.1-6
-- Rebuilt with GCC 16 prerelease.
-
-* Sun Aug 10 2025 Björn Persson <Bjorn@Rombobjörn.se> - 0.5.1-5
-- Rebuilt because the ALI of System.OS_Constants changed.
-
-* Wed Jul 23 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-4
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_43_Mass_Rebuild
-
-* Thu Jan 16 2025 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.1-3
-- Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild
-
-* Tue Jan 14 2025 Björn Persson <Bjorn@Rombobjörn.se> - 0.5.1-2
-- Rebuilt with GCC 15 prerelease.
-
-* Mon Nov 04 2024 Björn Persson <Bjorn@Rombobjörn.se> - 0.5.1-1
-- Upgraded to version 0.5.1.
-
 * Wed Jul 17 2024 Fedora Release Engineering <releng@fedoraproject.org> - 0.5.0-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild
 
diff --git a/sources b/sources
index 18b44c3..680e07c 100644
--- a/sources
+++ b/sources
@@ -1,5 +1,3 @@
 SHA512 (0xDBF6D7E1095FD0D9.asc) = 58d80b4de7fac4e95554c913ba60738ef7f8c55424f7b5a88a6d8c65dd482dcf4ec859f3928ed232d1bae4032c42c58183156099ee96d87a51125d28efd18149
 SHA512 (libanet-0.5.0.tar.bz2) = cb61f5b3231c56d8e0521a0693fb093d4203ec6a66bc592316c0f8a677d2d995feea65b46d72ba5cca4dc46a8c41ae4027ce3387c0f7dde6ba326cbde6b12c4d
 SHA512 (libanet-0.5.0.tar.bz2.sig) = 46bb94fda693da3af6207ee06661e7d0104f1954bcef2a86874bb5f3bb24a36b1488432724e3fa49786aa65c33df1fca6608da62d05182da4a2c51eda2c2d6e2
-SHA512 (libanet-0.5.1.tar.bz2) = bb9e8f8d040c30c036b11cb5923a06c1a230f4a70c674d8c8a1c816fc7901b1355e878d62f37e4f3e6caa43d0e3dc8e5b29a5ba2d32380110e0c3d4310777ecf
-SHA512 (libanet-0.5.1.tar.bz2.sig) = 5e3da5a2af7f746b49547a1dae64102ccfb08666a0a525cb7c7876bb575a9f2dad44a844923cf71289902455c5dc5bd8f8af2acacc844350ef7e115ec4656061