diff --git a/.gitea/workflows/master-dockerio.yaml b/.gitea/workflows/master-dockerio.yaml
index 51e2010..a1ab69a 100644
--- a/.gitea/workflows/master-dockerio.yaml
+++ b/.gitea/workflows/master-dockerio.yaml
@@ -149,5 +149,15 @@ jobs:
           push: true
           tags: |
             aprimediet/alpine:3.20
+      - name: Build and push 3.21
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: Dockerfile
+          build-args: |
+            ALPINE_VERSION=3.21
+          push: true
+          tags: |
+            aprimediet/alpine:3.21
             aprimediet/alpine:3
             aprimediet/alpine:latest
\ No newline at end of file
diff --git a/.gitea/workflows/master-winter.yaml b/.gitea/workflows/master-winter.yaml
index 3dbae18..13e3de7 100644
--- a/.gitea/workflows/master-winter.yaml
+++ b/.gitea/workflows/master-winter.yaml
@@ -149,5 +149,15 @@ jobs:
           push: true
           tags: |
             git.winteraccess.id/${{ gitea.repository }}:3.20
+      - name: Build and push 3.21
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          file: Dockerfile
+          build-args: |
+            ALPINE_VERSION=3.21
+          push: true
+          tags: |
+            git.winteraccess.id/${{ gitea.repository }}:3.21
             git.winteraccess.id/${{ gitea.repository }}:3
             git.winteraccess.id/${{ gitea.repository }}:latest
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
index 17153f0..d3ad529 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG ALPINE_VERSION=3.20
+ARG ALPINE_VERSION=3.21
 
 FROM alpine:${ALPINE_VERSION}
 LABEL maintainer="<Aditya Prima> aprimediet@gmail.com"