diff --git a/apps/alpine/metadata.json b/apps/alpine/metadata.json
index 3ec91f2a..32c4d220 100644
--- a/apps/alpine/metadata.json
+++ b/apps/alpine/metadata.json
@@ -7,7 +7,7 @@
       "name": "stable",
       "renovate::dataSource": "docker",
       "renovate::depName": "public.ecr.aws/docker/library/alpine",
-      "version": "3.21.2",
+      "version": "3.21.3",
       "platforms": [
         "linux/amd64",
         "linux/arm64"
diff --git a/apps/bazarr/Dockerfile b/apps/bazarr/Dockerfile
index eabcc60b..6cc61261 100644
--- a/apps/bazarr/Dockerfile
+++ b/apps/bazarr/Dockerfile
@@ -1,6 +1,6 @@
 ARG VERSION
 ARG METAVAR
-FROM public.ecr.aws/docker/library/alpine:3.21.2 as builder
+FROM public.ecr.aws/docker/library/alpine:3.21.3 as builder
 
 ARG VERSION
 ARG METAVAR
diff --git a/apps/prowlarr/Dockerfile b/apps/prowlarr/Dockerfile
index ddc74268..bdc411f1 100644
--- a/apps/prowlarr/Dockerfile
+++ b/apps/prowlarr/Dockerfile
@@ -1,6 +1,6 @@
 ARG VERSION
 ARG METAVAR
-FROM public.ecr.aws/docker/library/alpine:3.21.2 as builder
+FROM public.ecr.aws/docker/library/alpine:3.21.3 as builder
 
 ARG VERSION
 ARG METAVAR
diff --git a/apps/radarr/Dockerfile b/apps/radarr/Dockerfile
index 90ffb5ed..af18b1b1 100644
--- a/apps/radarr/Dockerfile
+++ b/apps/radarr/Dockerfile
@@ -1,6 +1,6 @@
 ARG VERSION
 ARG METAVAR
-FROM public.ecr.aws/docker/library/alpine:3.21.2 as builder
+FROM public.ecr.aws/docker/library/alpine:3.21.3 as builder
 
 ARG VERSION
 ARG METAVAR
diff --git a/apps/sonarr/Dockerfile b/apps/sonarr/Dockerfile
index 9d53e716..d8520331 100644
--- a/apps/sonarr/Dockerfile
+++ b/apps/sonarr/Dockerfile
@@ -1,6 +1,6 @@
 ARG VERSION
 ARG METAVAR
-FROM public.ecr.aws/docker/library/alpine:3.21.2 as builder
+FROM public.ecr.aws/docker/library/alpine:3.21.3 as builder
 
 ARG VERSION
 ARG METAVAR