diff --git a/.gitignore b/.gitignore
index 8ef7b04..44c3705 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,4 @@
 /ipcalc-0.3.0.tar.gz
 /ipcalc-0.4.0.tar.gz
 /ipcalc-0.4.1.tar.gz
+/ipcalc-1.0.0.tar.gz
diff --git a/ipcalc.spec b/ipcalc.spec
index 635668a..bf333c6 100644
--- a/ipcalc.spec
+++ b/ipcalc.spec
@@ -1,12 +1,12 @@
 Name: ipcalc
-Version: 0.4.1
-Release: 2%{?dist}
+Version: 1.0.0
+Release: 1%{?dist}
 Summary: IP network address calculator
 License: GPLv2+
 URL: https://gitlab.com/ipcalc/ipcalc
 Source0: https://gitlab.com/ipcalc/ipcalc/-/archive/%{version}/ipcalc-%{version}.tar.gz
 
-BuildRequires: gcc, libmaxminddb-devel, meson
+BuildRequires: gcc, libmaxminddb-devel, meson, rubygem(ronn)
 Recommends:    libmaxminddb, geolite2-city, geolite2-country
 
 # Explicitly conflict with older initscript packages that ship ipcalc
@@ -43,6 +43,9 @@ or check the validity of an address.
 %{_mandir}/man1/ipcalc.1*
 
 %changelog
+* Sat Oct 03 2020 Nikos Mavrogiannopoulos <nmav@redhat.com> - 1.0.0-1
+- Updated to 1.0.0
+
 * Tue Jul 28 2020 Fedora Release Engineering <releng@fedoraproject.org> - 0.4.1-2
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_33_Mass_Rebuild
 
diff --git a/sources b/sources
index 3f1af7f..9f6ce02 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ipcalc-0.4.1.tar.gz) = 0a8c7a209df3a19da7b9b9ec3c4a0604ac5e80dbdee70e27254d9e1b831fe2caeb622efe879575fcd0866d1ea29dabd1fd7e308d1c5c8c6cdfdec224818bda5b
+SHA512 (ipcalc-1.0.0.tar.gz) = a0c216109f26e048f3d923f8deebaa71a156f56f68613ed06486261c73058b256eca1c2271de7b84b48f1f307dab7bfc59aa3803f0539df438ac09bb6608f0e1