diff --git a/src/alpine/README.md b/src/alpine/README.md
index d47458d..07e417c 100644
--- a/src/alpine/README.md
+++ b/src/alpine/README.md
@@ -7,7 +7,7 @@ Simple Alpine container with Git installed.
 
 | Options Id | Description | Type | Default Value |
 |-----|-----|-----|-----|
-| imageVariant | Alpine version: | string | 3.20 |
+| imageVariant | Alpine version: | string | 3.21 |
 
 This template references an image that was [pre-built](https://containers.dev/implementors/reference/#prebuilding) to automatically include needed devcontainer.json metadata.
 
diff --git a/src/alpine/devcontainer-template.json b/src/alpine/devcontainer-template.json
index 8ce550f..d496526 100644
--- a/src/alpine/devcontainer-template.json
+++ b/src/alpine/devcontainer-template.json
@@ -11,10 +11,10 @@
             "type": "string",
             "description": "Alpine version:",
             "proposals": [
+                "3.21",
                 "3.20",
                 "3.19",
-                "3.18",
-                "3.17"
+                "3.18"
             ],
             "default": "3.20"
         }