diff --git a/kernel/Dockerfile b/kernel/Dockerfile
index eeb29b56a..9342a5bc5 100644
--- a/kernel/Dockerfile
+++ b/kernel/Dockerfile
@@ -42,8 +42,8 @@ ENV KERNEL_SOURCE=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VE
 ENV KERNEL_SHA256_SUMS=https://www.kernel.org/pub/linux/kernel/v4.x/sha256sums.asc
 ENV KERNEL_PGP2_SIGN=https://www.kernel.org/pub/linux/kernel/v4.x/linux-${KERNEL_VERSION}.tar.sign
 
-ENV WIREGUARD_VERSION=0.0.20180413
-ENV WIREGUARD_SHA256="419ef147c729db4442b9c2bb5ce4f76ae0807bd820d60d1dce17311885e97251"
+ENV WIREGUARD_VERSION=0.0.20180420
+ENV WIREGUARD_SHA256="b58cd2acf9e8d3fe9044c06c0056bd74da1f5673a456f011d36eee3f6fb1da16"
 ENV WIREGUARD_URL=https://git.zx2c4.com/WireGuard/snapshot/WireGuard-${WIREGUARD_VERSION}.tar.xz
 
 # We copy the entire directory. This copies some unneeded files, but