diff --git a/build.sh b/build.sh
index 4ef54b8..728b3cd 100755
--- a/build.sh
+++ b/build.sh
@@ -24,9 +24,9 @@
 # Set PLATFORM as required for your router model. See:
 # https://mikrotik.com/products/matrix
 #
-PLATFORM="linux/arm/v7"
-TAILSCALE_VERSION=1.46.1
-VERSION=0.1.20
+PLATFORM="linux/arm/v8"
+TAILSCALE_VERSION=1.48.0
+VERSION=0.1.21
 
 set -eu