diff --git a/Dockerfile b/Dockerfile
index 1fe703d39464..f8a548e2af86 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM alpine:3.15.4
+FROM alpine:3.18.5
 RUN apk --no-cache add ca-certificates git
 COPY trivy /usr/local/bin/trivy
 COPY contrib/*.tpl contrib/