diff --git a/basic/Dockerfile b/basic/Dockerfile
index 7c0993a..88bccf5 100644
--- a/basic/Dockerfile
+++ b/basic/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 
 ARG TARGETARCH
 
diff --git a/docworker/Dockerfile b/docworker/Dockerfile
index 271d7a0..e77bfdf 100644
--- a/docworker/Dockerfile
+++ b/docworker/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.20.3
+FROM alpine:3.21.0
 
 ARG TARGETARCH