diff --git a/.github/workflows/build-install.yaml b/.github/workflows/build-install.yaml
index 62662d82..58460c0f 100644
--- a/.github/workflows/build-install.yaml
+++ b/.github/workflows/build-install.yaml
@@ -73,6 +73,9 @@ jobs:
       - name: 'Install build dependencies (Fedora/CentOS)'
         if: ${{ contains(matrix.container, '/fedora:') || contains(matrix.container, '/centos:') }}
         run: |
+            RHEL_VERSION=$(rpm --eval '%{?rhel}')
+            [ -n "${RHEL_VERSION}" ] && rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-${RHEL_VERSION}.noarch.rpm
+            [ -n "${RHEL_VERSION}" ] && /usr/bin/crb enable
             dnf -y builddep contrib/osc.spec
 
       - name: 'Build SRPM and RPMs'
diff --git a/contrib/osc.spec b/contrib/osc.spec
index d1794fb2..1df9d985 100644
--- a/contrib/osc.spec
+++ b/contrib/osc.spec
@@ -15,31 +15,31 @@
 # need to override python_sitelib because it is not set as we would expect on many distros
 %define python_sitelib %(RPM_BUILD_ROOT= %{use_python} -Ic "import sysconfig; print(sysconfig.get_path('purelib'))")
 
-# generate manpages on distros where argparse-manpage >= 3 is available
-%if 0%{?suse_version} > 1500 || 0%{?fedora} >= 37
+# generate manpages on distros where argparse-manpage >= 3 and python3-Sphinx are available
+# please note that RHEL build requires packages from CRB and EPEL repositories
+%if 0%{?suse_version} > 1500 || 0%{?fedora} >= 37 || 0%{?rhel} >= 9
 %bcond_without man
 %else
 %bcond_with man
 %endif
 
 # whether to use fdupes to deduplicate python bytecode
-%if 0%{?suse_version} || 0%{?fedora}
+%if 0%{?suse_version} || 0%{?fedora} || 0%{?rhel} >= 8
 %bcond_without fdupes
 %else
 %bcond_with fdupes
 %endif
 
-%define argparse_manpage_pkg %{use_python_pkg}-argparse-manpage
-%define obs_build_pkg obs-build
-%define sphinx_pkg %{use_python_pkg}-Sphinx
-
-%if 0%{?fedora}
 %define argparse_manpage_pkg argparse-manpage
+%define obs_build_pkg obs-build
+%define openssh_pkg openssh
 %define sphinx_pkg %{use_python_pkg}-sphinx
-%endif
 
 %if 0%{?suse_version}
+%define argparse_manpage_pkg %{use_python_pkg}-argparse-manpage
 %define obs_build_pkg build
+%define openssh_pkg openssh-common
+%define sphinx_pkg %{use_python_pkg}-Sphinx
 %endif
 
 Name:           osc
@@ -110,12 +110,8 @@ Recommends:     obs-service-source_validator
 Recommends:     obs-service-tar_scm
 Recommends:     obs-service-verify_file
 
-%if 0%{?fedora}
-Recommends:     openssh
-%endif
-%if 0%{?suse_version}
-Recommends:     openssh-common
-%endif
+# needed for ssh signature auth
+Recommends:     %{openssh_pkg}
 
 # needed for `osc browse` that calls xdg-open
 Recommends:     xdg-utils