diff --git a/Dockerfile b/Dockerfile
index fdbe4037d..5f582ca41 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine
+FROM alpine:3.15
 RUN apk update && apk upgrade && \
   apk add --no-cache ca-certificates
 COPY stripe /bin/stripe