diff --git a/Dockerfile b/Dockerfile
index d99153d23..45e28df3e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Main stage
-FROM alpine:3.21.2@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099
+FROM alpine:3.21.3@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
 
 # Copy necessary files
 COPY scripts /scripts
diff --git a/Dockerfile.fat b/Dockerfile.fat
index 97e328501..5ff49aabd 100644
--- a/Dockerfile.fat
+++ b/Dockerfile.fat
@@ -12,7 +12,7 @@ RUN DOCKER_ENABLE_SECURITY=true \
 ./gradlew clean build
 
 # Main stage
-FROM alpine:3.21.2@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099
+FROM alpine:3.21.3@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
 
 # Copy necessary files
 COPY scripts /scripts
diff --git a/Dockerfile.ultra-lite b/Dockerfile.ultra-lite
index 650daf018..8ebc1a4af 100644
--- a/Dockerfile.ultra-lite
+++ b/Dockerfile.ultra-lite
@@ -1,5 +1,5 @@
 # use alpine
-FROM alpine:3.21.2@sha256:56fa17d2a7e7f168a043a2712e63aed1f8543aeafdcee47c58dcffe38ed51099
+FROM alpine:3.21.3@sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
 
 ARG VERSION_TAG