diff --git a/Dockerfile.signimage b/Dockerfile.signimage
index 11154e659..82e546bac 100644
--- a/Dockerfile.signimage
+++ b/Dockerfile.signimage
@@ -1,8 +1,8 @@
-FROM alpine:3.22 as ksource
+FROM alpine:3.23 as ksource
 
 RUN ["apk", "add", "linux-virt-dev"]
 
-FROM alpine:3.22
+FROM alpine:3.23
 
 COPY --from=ksource /usr/src/linux-headers-*-virt/scripts/sign-file /usr/local/bin/sign-file
 
diff --git a/Dockerfile.worker b/Dockerfile.worker
index a50dbb0c6..1933ec667 100644
--- a/Dockerfile.worker
+++ b/Dockerfile.worker
@@ -28,7 +28,7 @@ COPY .git .git
 # Build
 RUN ["make", "worker"]
 
-FROM alpine:3.22
+FROM alpine:3.23
 
 RUN ["apk", "add", "ca-certificates", "kmod"]