diff --git a/kernel/kernel-modules/intel-ixgbe/centos/build_srpm.data b/kernel/kernel-modules/intel-ixgbe/centos/build_srpm.data
index 63ad981e2..1653586fb 100644
--- a/kernel/kernel-modules/intel-ixgbe/centos/build_srpm.data
+++ b/kernel/kernel-modules/intel-ixgbe/centos/build_srpm.data
@@ -1,4 +1,4 @@
 COPY_LIST=" \
   $PKG_BASE/files/* \
-  $STX_BASE/downloads/ixgbe-5.5.5.tar.gz"
+  $STX_BASE/downloads/ixgbe-5.6.3.tar.gz"
 TIS_PATCH_VER=1
diff --git a/kernel/kernel-modules/intel-ixgbe/centos/ixgbe-kmod.spec b/kernel/kernel-modules/intel-ixgbe/centos/ixgbe-kmod.spec
index 5f314a78c..9ea25a8fe 100644
--- a/kernel/kernel-modules/intel-ixgbe/centos/ixgbe-kmod.spec
+++ b/kernel/kernel-modules/intel-ixgbe/centos/ixgbe-kmod.spec
@@ -8,7 +8,7 @@
 %define kmod_name ixgbe
 
 Name:    %{kmod_name}-kmod%{?bt_ext}
-Version: 5.5.5
+Version: 5.6.3
 Release: 0%{?_tis_dist}.%{tis_patch_ver}
 Group:   System Environment/Kernel
 License: GPLv2
@@ -108,10 +108,10 @@ find %{buildroot} -type f -name \*.ko -exec %{__strip} --strip-debug \{\} \;
 
 # Always Sign the modules(s).
 # If the module signing keys are not defined, define them here.
-%{!?privkey: %define privkey /usr/src/kernels/%{kversion}/signing_key.priv}
+%{!?privkey: %define privkey /usr/src/kernels/%{kversion}/signing_key.pem}
 %{!?pubkey: %define pubkey /usr/src/kernels/%{kversion}/signing_key.x509}
 for module in $(find %{buildroot} -type f -name \*.ko);
-do %{__perl} /usr/src/kernels/%{kversion}/scripts/sign-file \
+do /usr/src/kernels/%{kversion}/scripts/sign-file \
     sha256 %{privkey} %{pubkey} $module;
 done