diff --git a/debug.dockerfile b/debug.dockerfile
index 96d04af..a49dca7 100644
--- a/debug.dockerfile
+++ b/debug.dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:latest
+FROM alpine:3.15
 RUN  apk --no-cache --update add bash wget ca-certificates
 
 WORKDIR /