diff --git a/argon2.spec b/argon2.spec
index 4bca921..14ff5a4 100644
--- a/argon2.spec
+++ b/argon2.spec
@@ -19,13 +19,13 @@
 Name:    argon2
 Version: %{upstream_version}%{?upstream_prever:~%{upstream_prever}}
 Release: 6%{?dist}
-Group:   Applications/System
 Summary: The password-hashing tools
 
 License: Public Domain or ASL 2.0
 URL:     https://github.com/%{gh_owner}/%{gh_project}
 Source0: https://github.com/%{gh_owner}/%{gh_project}/archive/%{gh_commit}/%{gh_project}-%{upstream_version}%{?upstream_prever}-%{gh_short}.tar.gz
 
+BuildRequires: gcc
 Requires: %{libname}%{?_isa} = %{version}-%{release}
 
 
@@ -54,7 +54,6 @@ Argon2 has three variants: Argon2i, Argon2d, and Argon2id.
 
 
 %package -n %{libname}
-Group:    System Environment/Libraries
 Summary:  The password-hashing library
 
 %description -n %{libname}
@@ -64,7 +63,6 @@ for credential storage, key derivation, or other applications.
 
 
 %package -n %{libname}-devel
-Group:    Development/Libraries
 Summary:  Development files for %{libname}
 Requires: %{libname}%{?_isa} = %{version}-%{release}