diff --git a/.woodpecker/build.yml b/.woodpecker/build.yml
index ce16dd88..c429a8f4 100644
--- a/.woodpecker/build.yml
+++ b/.woodpecker/build.yml
@@ -20,7 +20,7 @@ steps:
       # - west build -s zmk/app -b seeeduino_xiao_ble -d build/zaphod_lite_xiao_ble -- -DZMK_CONFIG="$CI_WORKSPACE/config" -DSHIELD=zaphod_lite
       - cat -n build/zaphod/zephyr/.config
   - name: upload
-    image: alpine:3.20.3@sha256:1e42bbe2508154c9126d48c2b8a75420c3544343bf86fd041fb7527e017a4b4a
+    image: alpine:3.21.0@sha256:21dc6063fd678b478f57c0e13f47560d0ea4eeba26dfc947b2a4f81f686b9f45
     commands:
       - apk add curl
       - stat build/zaphod/zephyr/zmk.uf2