diff --git a/Dockerfile b/Dockerfile
index 5e22c3e..bd3578c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.17
+FROM alpine:3.18
 
 # install packages required to run the tests
 RUN apk add --no-cache jq coreutils