diff --git a/src/io/untar/config.vsh.yaml b/src/io/untar/config.vsh.yaml
index d69faaf..436d8e4 100644
--- a/src/io/untar/config.vsh.yaml
+++ b/src/io/untar/config.vsh.yaml
@@ -33,4 +33,8 @@ test_resources:
     path: test.sh
 engines:
   - type: docker
-    image: bash:latest
\ No newline at end of file
+    image: alpine:latest
+    setup:
+      - type: apk
+        packages:
+          - bash
\ No newline at end of file