diff --git a/kernel/Dockerfile b/kernel/Dockerfile
index 2b885b936..d8997a0f0 100644
--- a/kernel/Dockerfile
+++ b/kernel/Dockerfile
@@ -180,13 +180,14 @@ RUN if [ "${KERNEL_SERIES}" != "4.4.x" ] && [ "${KERNEL_SERIES}" != "4.9.x" ]; t
      fi
 
 # Download Intel ucode and create a CPIO archive for it
-ENV UCODE_URL=https://downloadmirror.intel.com/27591/eng/microcode-20180312.tgz
+ENV UCODE_URL=https://downloadmirror.intel.com/27776/eng/microcode-20180425.tgz
 RUN set -e && \
     if [ $(uname -m) == x86_64 ]; then \
         cd /ucode && \
         curl -sSL -o microcode.tar.gz ${UCODE_URL} && \
         md5sum -c intel-ucode-md5sums && \
         tar xf microcode.tar.gz && \
+        rm -f intel-ucode/list && \
         iucode_tool --normal-earlyfw --write-earlyfw=/out/intel-ucode.cpio ./intel-ucode && \
         cp intel-ucode-license.txt /out; \
     fi
diff --git a/kernel/ucode/intel-ucode-md5sums b/kernel/ucode/intel-ucode-md5sums
index 7fbc16054..a88b9033e 100644
--- a/kernel/ucode/intel-ucode-md5sums
+++ b/kernel/ucode/intel-ucode-md5sums
@@ -1 +1 @@
-be315cd99a7ca392a2f917ceacbe14f2  microcode.tar.gz
+99c80f9229554953a868127cda44e7e3  microcode.tar.gz