diff --git a/SPECS/rocky-release.spec b/SPECS/rocky-release.spec
index d6190bc..6267076 100644
--- a/SPECS/rocky-release.spec
+++ b/SPECS/rocky-release.spec
@@ -303,34 +303,34 @@ install -m 0644 %{SOURCE1403} %{buildroot}%{_datadir}/pki/sb-certs/
 
 # Placeholders
 # x86_64
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-x86_64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-x86_64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-x86_64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-x86_64.crt
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-x86_64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-x86_64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-x86_64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-x86_64.cer
 
 # aarch64
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-aarch64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-aarch64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-aarch64.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-aarch64.crt
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-aarch64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-aarch64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-aarch64.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-aarch64.cer
 
 # ppc64le
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-ppc64le.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-ppc64le.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-ppc64le.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-ppc64le.crt
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-ppc64le.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-ppc64le.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-ppc64le.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-ppc64le.cer
 
 # armhfp
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-armhfp.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-armhfp.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-armhfp.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-armhfp.crt
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-armhfp.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-armhfp.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-armhfp.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-armhfp.cer
 
 # s390x
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-s390x.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-s390x.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-s390x.crt
-ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-s390x.crt
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-root-ca.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-ca-s390x.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-kernel-s390x.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-grub2-s390x.cer
+ln -sr %{buildroot}%{_datadir}/pki/sb-certs/rocky-signing.der %{buildroot}%{_datadir}/pki/sb-certs/secureboot-fwupd-s390x.cer
 
 # symlinks for everybody
 for x in $(ls %{buildroot}%{_datadir}/pki/sb-certs); do