diff --git a/SOURCES/centos-ca-secureboot.der b/SOURCES/centos-ca-secureboot.der
new file mode 100644
index 0000000..44a2563
Binary files /dev/null and b/SOURCES/centos-ca-secureboot.der differ
diff --git a/SOURCES/centossecureboot001.der b/SOURCES/centossecureboot001.der
new file mode 100644
index 0000000..e8216b1
Binary files /dev/null and b/SOURCES/centossecureboot001.der differ
diff --git a/SOURCES/centossecureboot203.der b/SOURCES/centossecureboot203.der
new file mode 100644
index 0000000..5df41c2
Binary files /dev/null and b/SOURCES/centossecureboot203.der differ
diff --git a/SOURCES/centossecurebootca2.der b/SOURCES/centossecurebootca2.der
new file mode 100644
index 0000000..42bdfcf
Binary files /dev/null and b/SOURCES/centossecurebootca2.der differ
diff --git a/SOURCES/redhatsecureboot301.cer b/SOURCES/redhatsecureboot301.cer
deleted file mode 100644
index 4ff8b79..0000000
Binary files a/SOURCES/redhatsecureboot301.cer and /dev/null differ
diff --git a/SOURCES/redhatsecureboot503.cer b/SOURCES/redhatsecureboot503.cer
deleted file mode 100644
index 50e375c..0000000
Binary files a/SOURCES/redhatsecureboot503.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca3.cer b/SOURCES/redhatsecurebootca3.cer
deleted file mode 100644
index b235400..0000000
Binary files a/SOURCES/redhatsecurebootca3.cer and /dev/null differ
diff --git a/SOURCES/redhatsecurebootca5.cer b/SOURCES/redhatsecurebootca5.cer
deleted file mode 100644
index dfb0284..0000000
Binary files a/SOURCES/redhatsecurebootca5.cer and /dev/null differ
diff --git a/SPECS/fwupd.spec b/SPECS/fwupd.spec
index ac9797f..8d18174 100644
--- a/SPECS/fwupd.spec
+++ b/SPECS/fwupd.spec
@@ -56,10 +56,11 @@ Source15:  http://people.redhat.com/rhughes/dbx/DBXUpdate-20200729-x64.cab
 
 # these are numbered high just to keep them wildly away from colliding with
 # the real package sources, in order to reduce churn.
-Source300:   redhatsecurebootca3.cer
-Source301:   redhatsecureboot301.cer
-Source500:   redhatsecurebootca5.cer
-Source503:   redhatsecureboot503.cer
+
+Source300:   centos-ca-secureboot.der
+Source301:   centossecureboot001.der
+Source500:   centossecurebootca2.der
+Source503:   centossecureboot203.der
 
 BuildRequires: efi-srpm-macros
 BuildRequires: gettext
@@ -263,8 +264,8 @@ install %{SOURCE10} %{SOURCE11} %{SOURCE12} %{SOURCE13} %{SOURCE14} %{SOURCE15} 
 %ifarch x86_64
 %global efiarch x64
 %global fwup_efi_fn $RPM_BUILD_ROOT%{_libexecdir}/fwupd/efi/fwupd%{efiarch}.efi
-%pesign -s -i %{fwup_efi_fn} -o %{fwup_efi_fn}.tmp -a %{SOURCE300} -c %{SOURCE301} -n redhatsecureboot301
-%pesign -s -i %{fwup_efi_fn}.tmp -o %{fwup_efi_fn}.signed -a %{SOURCE500} -c %{SOURCE503} -n redhatsecureboot503
+%pesign -s -i %{fwup_efi_fn} -o %{fwup_efi_fn}.tmp -a %{SOURCE300} -c %{SOURCE301} -n centossecureboot001
+%pesign -s -i %{fwup_efi_fn}.tmp -o %{fwup_efi_fn}.signed -a %{SOURCE500} -c %{SOURCE503} -n centossecureboot203
 rm -fv %{fwup_efi_fn}.tmp
 %endif